Performance Comprehensive performance optimization patterns for frontend, backend, and LLM inference. Quick Reference | Category | Rules | Impact | When to Use | |----------|-------|--------|-------------| | Core Web Vitals | 4 | CRITICAL | LCP, INP, CLS optimization with 2026 thresholds | | Render Optimization | 3 | HIGH | React Compiler, memoization, virtualization | | Lazy Loading | 3 | HIGH | Code splitting, route splitting, preloading | | Image Optimization | 3 | HIGH | Next.js Image, AVIF/WebP, responsive images | | Profiling & Backend | 3 | MEDIUM | React DevTools, py-spy, bundle analy…