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66. How to find the Performance Bottleneck of a web app?
- Use browser developer tools to identify slow loading resources, high CPU or memory usage, and network requests that take too long to finish.
- Use a profiling tool like Chrome DevTools Performance tab or Flame Chart to understand the rendering timeline and see what factors are causing the most delay in your app's performance.
- Conduct A/B testing to compare and analyze the performance of the app before and after you make changes, so you can see if your changes are effective in improving the performance.