vercel-react-best-practices

To optimize React and Next.js performance, apply engineering best practices across component design, data fetching, and bundling. This reduces bundle size, accelerates hydration, and improves TTI and LCP metrics in production applications.

Managing server and client boundaries requires enforcing safer RSC and CSR data flows. Applying structured rules for server-side rendering performance and client data fetching ensures secure boundaries and eliminates data fetching waterfalls.

Eliminating data fetching waterfalls involves using parallel data fetching patterns and suspense boundaries. Applying these React optimization rules during page creation prevents sequential requests and improves server-side performance.

These React performance rules are designed for code reviews, refactors, and performance audits. Applying the catalog of 57 rules across 8 categories helps identify bottlenecks and enforce best practices iteratively.

The best way to reduce JavaScript bundle size is applying dynamic imports and optimized bundling patterns. These best practices eliminate unnecessary code and improve overall application loading metrics.

Slow Time to Interactive often results from heavy hydration and large bundles. Fixing it requires applying performance optimization guidelines for rendering and JavaScript performance to iteratively refactor pages for faster TTI.