React Optimise Best Practices Application-level performance optimization guide for React applications. Contains 43 rules across 8 categories, prioritized by impact from critical (React Compiler, bundle optimization) to incremental (memory management). When to Apply - Optimizing React application performance or bundle size - Adopting or troubleshooting React Compiler v1.0 - Splitting bundles and configuring code splitting - Improving Core Web Vitals (INP, LCP, CLS) - Profiling render performance and identifying bottlenecks - Fixing memory leaks in long-lived single-page applications - Optimizi…