speed-is-the-feature

Optimize perceived speed by implementing optimistic UI updates, skeleton screens, and performance budgets to meet perception thresholds and minimize latency through code splitting and lazy loading.

Improve loading states by replacing spinners with skeleton screens that match content layout, providing immediate visual structure and superior perceived performance during data fetching.

Implement optimistic UI by updating the interface immediately upon user action before server confirmation, ensuring interactions feel instantaneous and maintaining uninterrupted user flow.

Enforce performance budgets by limiting JavaScript bundle size to under 200KB gzipped and targeting Interaction to Next Paint (INP) times under 200ms for enhanced responsiveness.

Applications feel slow when exceeding Nielsen's three perception thresholds (100ms, 1s, 10s); addressing perceived speed via lazy loading and optimistic updates corrects this user experience issue.

Skeleton screens suit most loading transitions by matching content layout, but optimize overall flow by combining them with code splitting and lazy loading to address underlying latency.