React Engineering
Fix React Performance Issues — Without Re-launching Your Site
React fixed without rewriting the world
Senior engineers · IST + EST overlapNDA on day 124-hour reply
The problem
What you're seeing
Your React app feels heavy: slow filters, janky modals, sluggish lists, and a profiler that paints everything orange.
How we fix it
Our approach
We profile under realistic load, virtualise long lists, move expensive work off the main thread, and tighten render scopes. The app starts feeling instant.
What you get
Concrete deliverables, no fluff
Every engagement ends with measurable, documented outcomes — no black-box agency reports.
Audit of the failing component tree
Refactor with memoisation + stable deps
Regression tests for the fixed paths
Hand-off doc explaining what changed and why
Tooling we use
Industry-standard stack, no proprietary lock-in
React 18TypeScriptReact DevToolsVitest
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