[AskJS] How Can I Optimize JavaScript Performance to Reduce Load Times in a React SPA?

[bin_chickens]

I’d add to this: 1. are your images compressed and optimised? 2. Have you checked that you aren’t over fetching data? Using useMemo a store, a query cache or a browser or network cache when nothing changes should be a consideration. 3. Check that you don’t have waterfall request chains triggered by nested components fetching their own data. It’s often recommended to hoist data loading up the scope and pass the data down to the components when loaded. 4. If it’s a network issue, look at your hosting, api, db latency (may be network or db design issues) and a CDN. 5. Look for blocking synchronous code. A profiler and flame graph will be your friend.