use-transitions-for-non-urgent-updates

Fix UI jank in React by deferring non-critical state updates using the `startTransition` API. This prevents frequent scroll position updates from blocking the main thread, keeping the user interface smooth and responsive.

The `startTransition` API marks state updates as non-urgent, allowing React to defer them. This prioritizes critical interactions and prevents non-blocking updates from causing visual lag during frequent user events like scrolling.

Use `startTransition` when you have non-urgent state updates that cause UI jank, such as tracking scroll positions. It delays non-critical re-renders so that immediate visual feedback remains responsive during user interactions.

Keep your React UI responsive by wrapping frequent, non-critical state updates in `startTransition`. This optimization defers non-blocking updates, ensuring that high-priority user interactions are not delayed by background re-renders.

Yes, you can use `startTransition` to optimize scroll tracker components. By deferring the scroll position state updates, the component prevents non-urgent re-renders from lagging behind user interaction, ensuring smooth performance.

Non-urgent re-renders block the main thread because standard state updates are treated as high priority. Using `startTransition` changes this behavior, deferring non-critical visual updates to keep the main thread clear for urgent tasks.