I've seen React apps grind to a halt during heavy computations. The problem isn't React, it's the single-threaded nature of JavaScript. Here's how we use Web Workers to fix it.

I profiled a React app that felt sluggish despite simple component logic. The problem wasn't the code we wrote, but the massive third-party libraries we imported. Here's how to diagnose and fix it.

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.

Rendering large lists in React can seriously kill performance. Here is a troubleshooting guide based on which library to use for which specific problem.

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.

useTransition is often reached for as a generic performance fix, but it solves a narrow, specific

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

These two hooks are often confused, but they solve fundamentally different problems. Here is the practical distinction based on real profiling.

Guessing at performance problems wastes time. Here is the exact workflow I use with the Profiler to find what is truly slow before optimizing anything.

Code splitting reduces initial load time, but only when applied at the right boundaries. Here is what worked when I measured it in practice.