App Start is very slow

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zornic
Posts: 71
Joined: 09 Dec 2017, 10:12

26 Mar 2018, 11:40

Hi Guys,

i've create an angular 5 app with Serenity unter Visual Studio 2017(.Net Framework 4.7.1) and now by starting the app is very slow. On fast PC with Intel Core i7 needed the app to start 12-14 seconds.
Have anybody an idea by the start is so slow? I hope anyonw have an tipp or an idea.

I call this Method "enableProdMode();" in main.ts

systemjs:

Code: Select all

(function (global) {
    System.config({
        paths: {
            // paths serve as alias
            'npm:': 'node_modules/'
        },
        // map tells the System loader where to look for things
        map: {
            // our app is within the app folder
            'app': 'ClientApp/app',

            // angular bundles
            '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
            '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
            '@angular/common/http': 'npm:@angular/common/bundles/common-http.umd.js',
            '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
            '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
            '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
            '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
            '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
            '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',

            '@angular/animations': 'npm:@angular/animations/bundles/animations.umd.js',
            '@angular/animations/browser': 'npm:@angular/animations/bundles/animations-browser.umd.js',
            '@angular/platform-browser/animations': 'npm:@angular/platform-browser/bundles/platform-browser-animations.umd.js',

            // other libraries
            'rxjs': 'npm:rxjs',
            'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js',
            'primeng': 'npm:primeng',
            'jquery': 'npm:jquery/dist/jquery.js',
            'fullcalendar': 'npm:fullcalendar/dist/fullcalendar.min.js',
            'moment': 'npm:moment/moment.js',
            'tslib': 'npm:tslib/tslib.js',
            'quill': 'npm:quill/dist/quill.js',
        },
        // packages tells the System loader how to load when no filename and/or no extension
        packages: {
            app: {
                main: './main.js',
                defaultExtension: 'js'
            },
            //app: {
            //    defaultExtension: 'js',
            //    meta: {
            //        './main.js': {
            //            loader: 'ClientApp/systemjs-angular-loader.js'
            //        }
            //    }
            //},
            rxjs: {
                defaultExtension: 'js'
            },
            primeng: {
                defaultExtension: 'js'
            },
            quill: {
                defaultExtension: 'js'
            }
        }
    });
})(this);
app.module.ts

Code: Select all

import { NgModule, enableProdMode } from '@angular/core';
//enableProdMode();
import { FormsModule } from '@angular/forms';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { LocationStrategy, HashLocationStrategy } from '@angular/common';

import { registerLocaleData } from '@angular/common';
import { RouterModule, Routes } from '@angular/router';
import { HttpModule } from '@angular/http';
import { HttpClientModule } from '@angular/common/http';
import 'rxjs/add/operator/toPromise';
import 'rxjs/add/operator/switchMap';

//### Routing zu anderen Forms ###
import { AppRoutingModule } from './app.routing.module';

//### Controls ###
import { AccordionModule } from 'primeng/accordion';
//import { AutoCompleteModule } from 'primeng/primeng';
import { BreadcrumbModule } from 'primeng/primeng';
import { ButtonModule } from 'primeng/primeng';
import { CalendarModule } from 'primeng/primeng';
//import { CarouselModule } from 'primeng/primeng';
import { ChartModule } from 'primeng/primeng';
import { CheckboxModule } from 'primeng/primeng';
import { ChipsModule } from 'primeng/primeng';
//import { CodeHighlighterModule } from 'primeng/primeng';
import { ConfirmDialogModule } from 'primeng/confirmdialog';
import { ColorPickerModule } from 'primeng/primeng';
//import { SharedModule } from 'primeng/primeng';
import { ContextMenuModule } from 'primeng/contextmenu';
//import { DataGridModule } from 'primeng/primeng';
import { DataListModule } from 'primeng/primeng';
//import { DataScrollerModule } from 'primeng/primeng';
import { DataTableModule } from 'primeng/primeng';
import { DialogModule } from 'primeng/primeng';
//import { DragDropModule } from 'primeng/primeng';
import { DropdownModule } from 'primeng/primeng';
import { EditorModule } from 'primeng/primeng';
import { FieldsetModule } from 'primeng/primeng';
import { FileUploadModule } from 'primeng/primeng';
//import { GalleriaModule } from 'primeng/primeng';
//import { GMapModule } from 'primeng/primeng';
import { GrowlModule } from 'primeng/primeng';
//import { InputMaskModule } from 'primeng/primeng';
//import { InputSwitchModule } from 'primeng/primeng';
//import { InputTextModule } from 'primeng/primeng';
import { InputTextareaModule } from 'primeng/inputtextarea';
//import { LightboxModule } from 'primeng/primeng';
//import { ListboxModule } from 'primeng/primeng';
//import { MegaMenuModule } from 'primeng/primeng';
import { MenuModule } from 'primeng/primeng';
import { MenubarModule } from 'primeng/primeng';
import { MessagesModule } from 'primeng/primeng';
//import { MultiSelectModule } from 'primeng/primeng';
//import { OrderListModule } from 'primeng/primeng';
//import { OrganizationChartModule } from 'primeng/primeng';
import { OverlayPanelModule } from 'primeng/primeng';
import { PaginatorModule } from 'primeng/primeng';
import { PanelModule } from 'primeng/primeng';
import { PanelMenuModule } from 'primeng/primeng';
import { PasswordModule } from 'primeng/primeng';
//import { PickListModule } from 'primeng/primeng';
//import { ProgressBarModule } from 'primeng/primeng';
//import { RadioButtonModule } from 'primeng/primeng';
import { RatingModule } from 'primeng/rating';
import { ScheduleModule } from 'primeng/primeng';
import { SelectButtonModule } from 'primeng/primeng';
//import { SlideMenuModule } from 'primeng/primeng';
import { SliderModule } from 'primeng/slider';
import { SpinnerModule } from 'primeng/primeng';
import { SplitButtonModule } from 'primeng/splitbutton';
import { StepsModule } from 'primeng/primeng';
import { TabMenuModule } from 'primeng/primeng';
import { TabViewModule } from 'primeng/primeng';
//import { TerminalModule } from 'primeng/primeng';
//import { TieredMenuModule } from 'primeng/primeng';
//import { ToggleButtonModule } from 'primeng/primeng';
import { ToolbarModule } from 'primeng/primeng';
import { TooltipModule } from 'primeng/primeng';
//import { TreeModule } from 'primeng/primeng';
import { TreeTableModule } from 'primeng/primeng';
//import { BlockUIModule } from 'primeng/primeng';
import { TableModule } from 'primeng/table';


import * as jQuery from 'jquery';
(window as any).jQuery = (window as any).$ = jQuery;
enableProdMode();
//import * as nanoScroller from 'nanoscroller';

//### Eigene Froms/Controls ###
import { AppComponent } from './Views/Home/app.component';
import { AppTopBarComponent } from './Views/Home/app.topbar.component';
import { AppBreadcrumbComponent } from './Views/Home/app.breadcrumb.component';
import { AppMenuComponent, AppSubMenuComponent } from './Views/Home/app.Menu.component';
import { AppFooterComponent } from './Views/Home/app.footer.component';


import { MyAccountComponent } from './Views/Account/MyAccount.component';
import { MyDocumentsComponent } from './Views/Account/MyDocuments.component';
import { MyToDosComponent } from './Views/Account/MyToDos.component';
import { MyToDoComponent } from './Views/Account/MyToDo.component';
import { MyCalendarComponent } from './Views/Account/MyCalendar.component';
import { SharedDocumentsComponent } from './Views/Account/SharedDocuments.component';


import { SelectionListComponent } from './Views/MasterData/Common/SelectionList.component';

import { BusinessPartnerComponent } from './Views/MasterData/BusinessPartner.component';
import { EmployeeComponent } from './Views/MasterData/Employee.component';
import { PhoneListItemComponent } from './Views/MasterData/PhoneListItem.component';
import { OperationCalendarComponent } from './Views/MasterData/OperationCalendar.component';
import { ComputerComponent } from './Views/MasterData/Common/Computer.component';
import { DepartmentComponent } from './Views/MasterData/Common/Department.component';

import { CategoryComponent } from './Views/MasterData/Common/Category.component';
import { PriorityComponent } from './Views/MasterData/Common/Priority.component';
import { StatusComponent } from './Views/MasterData/Common/Status.component';
import { CalendarComponent } from './Views/MasterData/Common/Calendar.component';
import { TeamComponent } from './Views/MasterData/Common/Team.component';

import { IdentityCardComponent } from './Views/MasterData/VisitPlanning/IdentityCard.component';
import { TrainingTypeComponent } from './Views/MasterData/VisitPlanning/TrainingType.component';
import { VisitorTypeComponent } from './Views/MasterData/VisitPlanning/VisitorType.component';
import { VisitCalendarsComponent } from './Views/VisitPlanning/Calendards.component';

import { TransportTypeComponent } from './Views/MasterData/LoadingScheduling/TransportType.component';
import { LoadingStateComponent } from './Views/MasterData/LoadingScheduling/LoadingState.component';

import { TriggerComponent } from './Views/MasterData/TaskScheduler/Trigger.component';
import { ActionComponent } from './Views/MasterData/TaskScheduler/Action.component';
import { JobComponent } from './Views/MasterData/TaskScheduler/Job.component';

import { PPActionComponent } from './Views/MasterData/ProjectPlanning/Action.component';
import { ProjectComponent } from './Views/MasterData/ProjectPlanning/Project.component';




import { VisitComponent } from './Views/VisitPlanning/Visit.component';
import { VisitCalendarComponent } from './Views/VisitPlanning/Calendar.component';

import { LoadingComponent } from './Views/LoadingScheduling/Loading.component';
import { LoadingCalendarComponent } from './Views/LoadingScheduling/Calendar.component';

import { DashboardTasksComponent } from './Views/ProjectPlanning/Tasks.component';
import { TaskComponent } from './Views/ProjectPlanning/Task.component';
import { ProjectDashboardComponent } from './Views/ProjectPlanning/ProjectDashboard.component';
import { ProjectCalendarComponent } from './Views/ProjectPlanning/ProjectCalendar.component';
import { ProjectTasksComponent } from './Views/ProjectPlanning/ProjectTasks.component';
import { ProjectListComponent } from './Views/ProjectPlanning/ProjectList.component';

import { DashboardComponent } from './Views/Home/Dashboard.component';
import { DashboardVisitplanningComponent } from './Views/Home/DashboardVisitplanning.component';
import { DashboardUsherComponent } from './Views/Home/DashboardUsher.component';
import { DashboardHospitalityComponent } from './Views/Home/DashboardHospitality.component';
import { DashboardLoadingComponent } from './Views/Home/DashboardLoadings.component';

import { DashboardTicketsystemComponent } from './Views/Ticketsystem/Dashboard.component';
import { TicketComponent } from './Views/Ticketsystem/Ticket.component';


import { ReportVisitsNextWeekComponent } from './Views/Reports/VisitPlanning/VisitsNextWeek.component';
import { CurrentlyPresentComponent } from './Views/Reports/VisitPlanning/CurrentlyPresent.component';
import { AllVisitsComponent } from './Views/Reports/VisitPlanning/AllVisits.component';

import { GeneralSettingsComponent } from './Views/Settings/GeneralSettings.component';
import { ServiceSettingsComponent } from './Views/Settings/ServiceSettings.component';
import { VisitPlanningSettingsComponent } from './Views/Settings/VisitPlanning/VisitPlanningSettings.component';
import { LoadingSchedulingSettingsComponent } from './Views/Settings/LoadingScheduling/LoadingSchedulingSettings';
import { TaskSchedulerSettingsComponent } from './Views/Settings/TaskScheduler/TaskSchedulerSettings.component';
import { ProjectPlanningSettingsComponent } from './Views/Settings/ProjectPlanning/ProjectPlanningSettings.component';
import { TicketsystemSettingsComponent } from './Views/Settings/Ticketsystem/TicketsystemSettings.component';
import { EmailSettingsComponent } from './Views/Settings/EmailSettings.component';
import { CustomMessagesComponent } from './Views/Settings/CustomMessages.component';
import { ChangelogComponent } from './Views/Settings/Changelog.component';
import { InfosComponent } from './Views/Settings/Info.component';

//### Services ###
import { BreadcrumbService } from './Services/Home/breadcrumb.service';

@NgModule({
    imports: [
        FormsModule,
        BrowserModule,
        BrowserAnimationsModule,
        HttpModule,
        HttpClientModule,
        AppRoutingModule,

        AccordionModule,
        //AutoCompleteModule,
        BreadcrumbModule,
        ButtonModule,
        CalendarModule,
        //CarouselModule,
        ChartModule,
        CheckboxModule,
        ChipsModule,
        //CodeHighlighterModule,
        ConfirmDialogModule,
        ColorPickerModule,
        //SharedModule,
        ContextMenuModule,
        //DataGridModule,
        DataListModule,
        //DataScrollerModule,
        DataTableModule,
        DialogModule,
        //DragDropModule,
        DropdownModule,
        EditorModule,
        FieldsetModule,
        FileUploadModule,
        //GalleriaModule,
        //GMapModule,
        GrowlModule,
        //InputMaskModule,
        //InputSwitchModule,
        //InputTextModule,
        InputTextareaModule,
        //LightboxModule,
        //ListboxModule,
        //MegaMenuModule,
        MenuModule,
        MenubarModule,
        MessagesModule,
        //MultiSelectModule,
        //OrderListModule,
        //OrganizationChartModule,
        OverlayPanelModule,
        PaginatorModule,
        PanelModule,
        PanelMenuModule,
        PasswordModule,
        //PickListModule,
        //ProgressBarModule,
        //RadioButtonModule,
        RatingModule,
        ScheduleModule,
        SelectButtonModule,
        //SlideMenuModule,
        SliderModule,
        SpinnerModule,
        SplitButtonModule,
        StepsModule,
        TabMenuModule,
        TabViewModule,
        //TerminalModule,
        //TieredMenuModule,
        //ToggleButtonModule,
        ToolbarModule,
        TooltipModule,
        //TreeModule,
        TreeTableModule,
        //BlockUIModule,
        TableModule,
    ],
    declarations: [
        AppComponent,
        AppTopBarComponent,
        AppBreadcrumbComponent,
        AppMenuComponent,
        AppSubMenuComponent,
        AppFooterComponent,
        
        MyAccountComponent,
        MyDocumentsComponent,
        MyToDosComponent,
        MyToDoComponent,
        MyCalendarComponent,
        SharedDocumentsComponent,




        SelectionListComponent,
        
        BusinessPartnerComponent,
        EmployeeComponent,
        PhoneListItemComponent,
        OperationCalendarComponent,
        ComputerComponent,
        DepartmentComponent,
        
        CategoryComponent,
        PriorityComponent,
        StatusComponent,
        CalendarComponent,
        TeamComponent,
        
        IdentityCardComponent,
        ProjectComponent,
        TrainingTypeComponent,
        VisitorTypeComponent,
        VisitCalendarsComponent,
        
        TransportTypeComponent,
        LoadingStateComponent,
        
        TriggerComponent,
        ActionComponent,
        JobComponent,
        
        PPActionComponent,




        VisitComponent,
        VisitCalendarComponent,

        LoadingComponent,
        LoadingCalendarComponent,

        DashboardTasksComponent,
        TaskComponent,
        ProjectDashboardComponent,
        ProjectCalendarComponent,
        ProjectTasksComponent,
        ProjectListComponent,

        DashboardComponent,
        DashboardVisitplanningComponent,
        DashboardUsherComponent,
        DashboardHospitalityComponent,
        DashboardLoadingComponent,

        DashboardTicketsystemComponent,
        TicketComponent,


        ReportVisitsNextWeekComponent,
        CurrentlyPresentComponent,
        AllVisitsComponent,

        GeneralSettingsComponent,
        ServiceSettingsComponent,
        VisitPlanningSettingsComponent,
        LoadingSchedulingSettingsComponent,
        TaskSchedulerSettingsComponent,
        ProjectPlanningSettingsComponent,
        TicketsystemSettingsComponent,
        EmailSettingsComponent,
        CustomMessagesComponent,
        ChangelogComponent,
        InfosComponent,
    ],
    providers: [
        { provide: LocationStrategy, useClass: HashLocationStrategy },
        BreadcrumbService,
    ],
    bootstrap: [
        AppComponent,
    ]
})
export class AppModule {

    constructor() {
    }

}


mert.sincan
Posts: 5281
Joined: 29 Jun 2013, 12:38

02 Apr 2018, 12:54

Serenity NG demo does not have lazy loading enabled, if you implement lazy loading for your application, it should open instantly, even less than a second.

Here is an example with webpack;

https://medium.com/@daviddentoom/angula ... 5fe71c29c1

There is also documentation about lazy loading routes at;

https://angular.io/docs/ts/latest/guide/router.html

(Note: PrimeNG showcase uses lazy loading as it has close to 100 pages.)

zornic
Posts: 71
Joined: 09 Dec 2017, 10:12

03 Apr 2018, 08:49

Hey,

thank you for your help. I updated my Website, but now i become error by calling the sites.

Code: Select all

Can't bind to 'columns' since it isn't a known property of 'p-table'.
1. If 'p-table' is an Angular component and it has 'columns' input, then verify that it is part of this module.
2. If 'p-table' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("

            
            <p-table #dt [ERROR ->][columns]="cols" [value]="items" [rows]="25" [paginator]="true" selectionMode="single" [(selection)]="): ng:///MasterData/SelectionList@5:25
Can't bind to 'value' since it isn't a known property of 'p-table'.
1. If 'p-table' is an Angular component and it has 'value' input, then verify that it is part of this module.
2. If 'p-table' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("

            
            <p-table #dt [columns]="cols" [ERROR ->][value]="items" [rows]="25" [paginator]="true" selectionMode="single" [(selection)]="selectedItem" [c"): ng:///MasterData/SelectionList@5:42
Can't bind to 'rows' since it isn't a known property of 'p-table'.
1. If 'p-table' is an Angular component and it has 'rows' input, then verify that it is part of this module.
2. If 'p-table' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("

            
            <p-table #dt [columns]="cols" [value]="items" [ERROR ->][rows]="25" [paginator]="true" selectionMode="single" [(selection)]="selectedItem" [contextMenu]="cm""): ng:///MasterData/SelectionList@5:58
Can't bind to 'paginator' since it isn't a known property of 'p-table'.
1. If 'p-table' is an Angular component and it has 'paginator' input, then verify that it is part of this module.
2. If 'p-table' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("

            
            <p-table #dt [columns]="cols" [value]="items" [rows]="25" [ERROR ->][paginator]="true" selectionMode="single" [(selection)]="selectedItem" [contextMenu]="cm" [(contextMe"): ng:///MasterData/SelectionList@5:70
Can't bind to 'selection' since it isn't a known property of 'p-table'.
1. If 'p-table' is an Angular component and it has 'selection' input, then verify that it is part of this module.
2. If 'p-table' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("<p-table #dt [columns]="cols" [value]="items" [rows]="25" [paginator]="true" selectionMode="single" [ERROR ->][(selection)]="selectedItem" [contextMenu]="cm" [(contextMenuSelection)]="selectedItem" (onRowSelect)"): ng:///MasterData/SelectionList@5:112
Can't bind to 'contextMenu' since it isn't a known property of 'p-table'.
1. If 'p-table' is an Angular component and it has 'contextMenu' input, then verify that it is part of this module.
2. If 'p-table' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. (" [value]="items" [rows]="25" [paginator]="true" selectionMode="single" [(selection)]="selectedItem" [ERROR ->][contextMenu]="cm" [(contextMenuSelection)]="selectedItem" (onRowSelect)="onRowSelect($event)" [loadi"): ng:///MasterData/SelectionList@5:141
Can't bind to 'contextMenuSelection' since it isn't a known property of 'p-table'.
1. If 'p-table' is an Angular component and it has 'contextMenuSelection' input, then verify that it is part of this module.
2. If 'p-table' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("ows]="25" [paginator]="true" selectionMode="single" [(selection)]="selectedItem" [contextMenu]="cm" [ERROR ->][(contextMenuSelection)]="selectedItem" (onRowSelect)="onRowSelect($event)" [loading]="loading">

 "): ng:///MasterData/SelectionList@5:160
Can't bind to 'loading' since it isn't a known property of 'p-table'.
1. If 'p-table' is an Angular component and it has 'loading' input, then verify that it is part of this module.
2. If 'p-table' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERROutil.js:183)
    at TemplateParser.parse (template_parser.js:141)
    at JitCompiler._parseTemplate (compiler.js:446)
    at JitCompiler._compileTemplate (compiler.js:425)
    at eval (compiler.js:322)
    at Set.forEach (<anonymous>)
    at JitCompiler._compileComponents (compiler.js:322)
    at eval (compiler.js:194)
    at n.invoke (scripts:1)
    at Object.onInvoke (ng_zone.js:594)
    at syntaxError (util.js:183)
    at TemplateParser.parse (template_parser.js:141)
    at JitCompiler._parseTemplate (compiler.js:446)
    at JitCompiler._compileTemplate (compiler.js:425)
    at eval (compiler.js:322)
    at Set.forEach (<anonymous>)
    at JitCompiler._compileComponents (compiler.js:322)
    at eval (compiler.js:194)
    at n.invoke (scripts:1)
    at Object.onInvoke (ng_zone.js:594)
    at o (scripts:1)
    at o (scripts:1)
    at scripts:1
    at n.invokeTask (scripts:1)
    at Object.onInvokeTask (ng_zone.js:585)
    at n.invokeTask (scripts:1)
    at u.runTask (scripts:1)
    at w (scripts:1)
    at t.invokeTask [as invoke] (scripts:1)
    at a (scripts:1)
defaultErrorLogger @ errors.js:55

zornic
Posts: 71
Joined: 09 Dec 2017, 10:12

10 Apr 2018, 18:11

Does nobody have an example with SystemJS? I've created a new Website and this Website need to start 16 sec :-(

Image

https://picload.org/view/dawoolwr/appstartslow.jpg.html

zornic
Posts: 71
Joined: 09 Dec 2017, 10:12

20 Apr 2018, 20:58

Any one an idea? I've updated to the newest Version 5.2.4 and Serentity 5.2.2 and have the same issue!
The App start in Internet Explorer is very slow!!!

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