Fix This and Your React App Instantly Gets Faster #reactjs #coding #frontend

Most developers blame API calls for a slow React app — but the real problem is much simpler: unnecessary rerenders. In React, even a tiny component update can trigger a full subtree to rerender. This silent chain reaction is the #1 reason most apps feel sluggish. In this video, you’ll learn how to stop it: • React.memo — prevents child components from rerendering when props haven’t changed • useCallback — keeps your functions stable to avoid rerenders • useMemo — ensures heavy calculations run only when needed Fixing rerenders is the fastest way to boost your app’s performance without ch…