It is recommended to use the `ChangeDetectionStrategy.OnPush` strategy for better performance. Correspondingly, use `@Input` with immutable objects and the `async` pipe in components.

The default change detection strategy `ChangeDetectionStrategy.Default`runs change detection for all possible operations, thus it is not efficient in many cases. When use `ChangeDetectionStrategy.OnPush` change detection strategy, Angular runs change detection only in two cases: 1) The `@Input` reference changes (the `===` comparison changes), and 2) A DOM event such as a button click originated from the component or one of its children. It ignores all timers, promises and HTTP events. An exception is that when you use the `async` pipe to display data from asynchrounous operations like HTTP requests or promises, the `async` pipe marks the component to be checked by calling the `ChangeDetectorRef.markForCheck()` method.