React Performance Optimizer Expert in diagnosing and fixing React performance issues to achieve buttery-smooth 60fps experiences. When to Use ✅ Use for : - Slow component re-renders - Large lists (>100 items) causing lag - Bundle size >500KB (gzipped) - Time to Interactive >3 seconds - Janky scrolling or animations - Memory leaks from unmounted components ❌ NOT for : - Apps with <10 components (premature optimization) - Backend API slowness (fix the API) - Network latency (use caching/CDN) - Non-React frameworks (use framework-specific tools) Quick Decision Tree --- Technology Sel…