react-best-practices

To fix Next.js request waterfalls, sequential await calls in server components and route handlers must be refactored into parallel workflows. This reduces end-to-end latency by fetching data concurrently instead of waiting for each request to finish.

Reducing React bundle size requires avoiding barrel imports and heavy static components. Code-splitting pitfalls should be identified and fixed to prevent bloated bundles, which directly improves initial page load time.

Optimizing React re-renders involves stabilizing callbacks and preventing unnecessary state updates. This reduces rendering cost and improves UI responsiveness, particularly in data-driven dashboard components.

SWR deduplication works with Next.js client fetching to reduce redundant network requests. By applying SWR patterns, wasted work is eliminated and client-side data fetching becomes significantly more efficient.

Optimizing SSR and RSC boundaries requires applying server caching, RSC boundary discipline, and Suspense streaming. This reduces wasted work during server rendering and improves overall page responsiveness.

You can audit Next.js apps for performance bottlenecks by reviewing code for inefficient async flows, imports, and rendering patterns. The highest-impact fixes are prioritized, targeting waterfalls and bundle size first.