How React Compiler Performs on Real Code

React Compiler, a tool developed by the React core team, aims to improve app performance by handling memoization automatically. It can reduce the number of re-renders without the need for `useMemo` and `useCallback` hooks. This investigation measured its impact on both initial load performance and interaction performance, finding mostly positive results with minimal initial load impact and noticeable interaction improvements. It can’t catch all re-renders, but it could be 'good enough' for many apps. Advanced performance optimization may still require manual memoization.