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

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:    • React performance crash course  

👇 Related videos:
React Context Performance Issue (and how Zustand helps) -    • Why React Context rerenders hurt — and how...  
React Query Full Tutorial Series -    • React/Tanstack Query(2024)  

⌚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 -    • Git automation  

Tanstack query -    • React/Tanstack Query(2024)  

Push Notifications using SW -    • Push Notifications using Service worker  

Service worker in Javascript (2023) -    • Service worker in Javascript (2023)  

Javascript observers(2023) -    • Javascript Observers(2023)  

The Web components Playlist -    • Web components 2023  

The Git series(2023) -    • The Git series(2023)  

Multitasking in NodeJS -    • Multi tasking in NodeJS  

NodeJS Authentication with Passport -    • NodeJS Authentication with Passport(2021)  

Job scheduling in NodeJS -    • Job scheduling in NodeJS  

NPM Tutorial Series -    • NPM Tutorial Series (2021)  

Javascript(Behind the scenes) -    • Javascript(Behind the scenes)  

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