Optimize Performance

When optimizing performance:

1. Measure first. Use profiling tools to identify the actual bottleneck — don’t guess.
2. Set a target: “page load under 2s” or “API response under 200ms.”
3. Fix the biggest bottleneck first. One large fix beats ten micro-optimizations.
4. After each change, measure again to verify improvement and check for regressions.
5. Common wins to check: N+1 queries, missing indexes, uncompressed assets, blocking scripts, unnecessary re-renders, oversized bundles.
6. Stop when you hit the target. Don’t optimize past the point of diminishing returns.