- Verify you’re running a production build. (Development builds are intentionally slower, in extreme cases even by an order of magnitude.)
- Verify that you didn’t put the state higher in the tree than necessary. (For example, putting input state in a centralized store might not be the best idea.)
- Run React DevTools Profiler to see what gets re-rendered, and wrap the most expensive subtrees with memo(). (And add useMemo() where needed.)
