Building High-Performance Angular Dashboards

Angular is a powerhouse for building complex, data-heavy dashboards. In this post, we'll explore some key strategies to ensure your dashboards are as fast as they are functional.

1. Use OnPush Change Detection

By default, Angular checks for changes in your components quite frequently. For dashboards with many components, switching to ChangeDetectionStrategy.OnPush can significantly reduce overhead.

@Component({
  // ...
  changeDetection: ChangeDetectionStrategy.OnPush,
})
export class DashboardComponent {}

2. Leverage Deferrable Views

Angular 17 introduced @defer, which allows you to lazily load parts of your template that aren't immediately visible. This is a game-changer for heavy charts and grids.

3. Web Workers for Heavy Lifting

If you're processing large datasets in the browser, move that logic to a Web Worker to keep the main thread smooth for UI interactions.