Real-World React Performance: Code Splitting, Lazy Loading & Beyond

YouTube Excerpt: You’ve learned how to avoid unnecessary re-renders, optimize hooks, and squeeze more performance out of React. Now let’s take it to the next level. In this video, we go beyond the basics — diving deep into real-world performance techniques: - Code-splitting with React.lazy & Suspense - Dynamic imports using Vite - Bundle size analysis with visualizer tools - Lazy loading routes and components - Why SSR and RSC don’t always work in production - The reality of hydration bugs, interactive UI, and why CSR often wins We'll also explore when to optimize, how to think about user experience vs. theoretical performance, and why developer experience matters just as much. If you're serious about building fast, scalable React apps without rewriting your whole stack, this is for you. Link to this playlist: https://www.youtube.com/playlist?list=PL62km_yqC3ZGF2yEUQIw6tpwXblNYPgJb 👇 Related videos: - React Context Performance Issue (and how Zustand helps) - https://youtu.be/sXauH0VBReA - React Query Full Tutorial Series - https://www.youtube.com/playlist?list=PL62km_yqC3ZHn5Wh9RaFNaEH3B7mxrv0B ⌚Timestamps 0:00 - Intro 0:30 - Code splitting with lazy() & Suspense 4:00 - lazy() method caveat 5:20 - Dynamic imports 7:15 - Bundle analysis 10:25 - My take on Server side rendering strategies 13:05 - Outro 🧑‍💻Other playlists: Git Automation - https://www.youtube.com/playlist?list=PL62km_yqC3ZF5h70VnEKoAIvlhQzZY5X5 Tanstack query - https://www.youtube.com/playlist?list=PL62km_yqC3ZHn5Wh9RaFNaEH3B7mxrv0B Push Notifications using SW - https://www.youtube.com/playlist?list=PL62km_yqC3ZF5Dh9vFdjjRxvn1xQKqj4B Service worker in Javascript (2023) - https://www.youtube.com/playlist?list=PL62km_yqC3ZEs7VWDF1BdmKwFHiXTDZPk Javascript observers(2023) - https://www.youtube.com/playlist?list=PL62km_yqC3ZGEevgSAFoMcGl8tSVGO_cI The Web components Playlist - https://www.youtube.com/playlist?list=PL62km_yqC3ZFk2A1JltWKGT0qy7gNspl_ The Git series(2023) - https://www.youtube.com/playlist?list=PL62km_yqC3ZH1Drj72q3W2HiQZcPO33kE Multitasking in NodeJS - https://www.youtube.com/playlist?list=PL62km_yqC3ZEV0wKbLbd3CG-2zt3oDkes NodeJS Authentication with Passport - https://www.youtube.com/playlist?list=PL62km_yqC3ZHlvkKVmR2f3W6SEzh8pRIf Job scheduling in NodeJS - https://www.youtube.com/playlist?list=PL62km_yqC3ZEyoJa7JtdPOmzMgKuuZZ-x NPM Tutorial Series - https://www.youtube.com/playlist?list=PL62km_yqC3ZG2su1cA-mY_6S3mSFafAS8 Javascript(Behind the scenes) - https://www.youtube.com/playlist?list=PL62km_yqC3ZE83FRlmER2sLH1T2RSoj4A Socials 🐤 Twitter - https://twitter.com/themangalorian 📷 Instagram - https://www.instagram.com/_alt.ar_/ 👔 LinkedIn - https://www.linkedin.com/in/akilesh-rao-610357137/ 🧑‍💻 GitHub - https://github.com/AkileshRao 📝 Medium - https://medium.com/@akileshrao19

You’ve learned how to avoid unnecessary re-renders, optimize hooks, and squeeze more performance out of React. Now let’s take it to the next...

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