React Render Optimization

Table of Contents

• When to Use
• Instructions
• Details
• Source

Practical patterns for eliminating unnecessary re-renders, reducing rendering cost, and keeping React UIs responsive. These patterns apply to any React application — whether you're using Vite, Next.js, Remix, or a custom setup.

When to Use

Reference these patterns when:

• Components re-render more often than expected
• UI feels sluggish during typing, scrolling, or interactions
• Profiler shows wasted renders in the component tree
• Building performance-sensitive features (dashboards, editors, lists)
• Reviewing or refactoring existing React components