Performance

I was asked to diagnose a React app failing its Core Web Vitals. The culprit was image handling. Here is the step-by-step process we followed to fix it.

Dependency array issues are responsible for a large share of the React bugs I get asked to debug. Here is what causes them under the hood and how to fix each variant.

React.memo is truly helpful but frequently misapplied. Here is the practical decision framework I use after profiling dozens of components.

Slow list rendering has a small number of truly common causes. Here is the diagnostic process I really use, with the specific fix for each cause.

Context is undeniably convenient but causes specific, measurable performance issues when misused. Here is what I found when profiling context-heavy applications.

Forms with many fields or complex validation can become quite sluggish. Here is what I found truly causes this and the specific fixes that helped.