structuralDirective.js

@Directive({
  selector: '[delayRendering]'
})
export class DelayRenderingDirective {
  constructor(
    private template: TemplateRef<any>,
    private container: ViewContainerRef
  ) { }

  @Input()
  set delayRendering(delayTime: number): void { }

  ngOnInit() {
    setTimeout(() => {
      this.container.createEmbeddedView(this.template);
    }, this.delayRendering);
  }
}