Optimizing React Performance

React performance tuning is less about clever tricks and more about being intentional.

Watch render boundaries

Memoize expensive components and keep prop signatures small. You want React to skip work when nothing changed.

Measure, then improve

The React Profiler and browser performance tools tell you where frames are dropping. Fix the hotspots—not just the suspicious code.

Ship less JavaScript

Bundle splitting and React.lazy make large features load only when needed. Faster startup makes everything else feel instant.