React Performance Optimizations: How to Fix a Slow App

Watch how to optimize images - https://www.youtube.com/watch?v=uNR28b8fgpg

Learn essential techniques to optimize the performance of your React web app using Core Web Vitals.

In this comprehensive tutorial, I'll walk you through optimizing a real Video Player component from scratch, covering everything from bundle optimization to advanced React performance patterns while actually measuring the performance improvements.

*VIDEO REFERENCES*
Source code: https://github.com/shrutikapoor08/videoplayer-demo
16 useEffect mistakes - https://youtu.be/yGOPO2V6MHI?si=VL1Uo5BkiqNYLXEH
TanStack Start Crash Course - https://youtu.be/X2Rcp87yl4s?si=LLFHyn0zj95KBPuh
Optimize LCP: https://web.dev/articles/optimize-lcp

*TOOLS & COMMANDS USED:*
- npx depcheck
- React Profiler
- React Compiler
- React 19 Performance Tracks
- Vite Bundle Analyzer
- Chrome DevTools Performance Tab

*RECOMMENDED RESOURCES*
1. React Course for beginners: https://www.oreilly.com/library/view/react-fundamentals-building/0636920981428/
2. Practice React Interviews: https://www.greatfrontend.com/questions/js?fpr=shruti79
3. AI-Ready FullStack Developer Course: https://scrimba.com/fullstack-path-c0fullstack?via=shrutikapoor

*FREE RESOURCES*
1. FREE React Interview Questions Book: https://bit.ly/free-react-guide
2. Top 5 in React and AI Every Week: https://bit.ly/shruti-newsletter

*GET IN TOUCH*
1. Book a 1:1 - https://topmate.io/shrutikapoor08
2. Join our Discord: http://bit.ly/shruti-discord

*SOCIALS*
X / Twitter: https://twitter.com/shrutikapoor08
INSTAGRAM: https://www.instagram.com/techcreatorshrutikapoor/
TIKTOK: https://www.tiktok.com/@techcreatorshrutikapoor
Web: https://shrutikapoor.dev/
Support me on Patreon: https://patreon.com/Shrutikapoor

*CHAPTERS*
0:00 Intro
0:44 Current state of the app
6:21 Step 1: Bundle optimizations
9:05 Step 2: React optimizations
21:48 Step 3: Server Side Rendering
24:52 Step 4: Asset Optimizations
30:18 Final demo
#react #nextjs #performance #webdevelopment
Sub: 37382

Видео React Performance Optimizations: How to Fix a Slow App канала Shruti Kapoor