APP_INITIALIZER slows down transloco?

[Ookamini95]

My translation are loading quite slowly (dev mode which is weird) as it takes almost 1 second before loading the text. Can I force the fetch from the APP_INITIALIZER?

I have the following app configuration

export const appConfig: ApplicationConfig = {
  providers: [
    provideRouter(routes),
    provideAnimationsAsync(),
    provideHttpClient(
      withFetch(),
      withInterceptors([
        withHttpCacheInterceptor()
      ]),
    ),
    provideHttpCache(),
    provideTransloco({
      config: { 
        availableLangs: ['en', 'it'],
        defaultLang: 'it',
        // Remove this option if your application doesn't support changing language in runtime.
        reRenderOnLangChange: true,
        prodMode: !isDevMode(),
      },
      loader: TranslocoHttpLoader
    }),
    {
      provide: APP_INITIALIZER,
      useFactory: () => {
        const auth = inject(AuthService);
        return () => auth.initAuth();
      },
      deps: [AuthService],
      multi: true,
    },
  ]
};

Edit

useFactory: () => {
        const initAuth$ = inject(AuthService).initAuth();
        const transloco$ = inject(TranslocoService).load('it');
        return () => forkJoin([transloco$, initAuth$]);
      },