Your React app might be slow before it renders a single component. ⚡ With the React Compiler now handling routine memoization, sprinkling useMemo everywhere is no longer the answer. The bigger wins are usually elsewhere: oversized bundles, network waterfalls, and data-fetching architecture. In her new article, iJS speaker Sylwia Laskowska shares a practical React performance checklist for 2026: ✅ Measure first, then find the real bottleneck ✅ Check what happens before React (bundle size, heavy libraries, request chains) ✅ Ship less JavaScript with code splitting, lazy loading, and smart server/client boundaries ✅ Reduce work instead of making unnecessary work slightly faster ✅ Measure again, because “it feels faster” isn’t a metric The compiler won’t save an app that ships 8MB of JavaScript on startup. 👉 Read the full article: javascript-conference.com/bl… Want more? Meet Sylwia at iJS Munich, where she’ll talk about “Making React Apps Faster with WebGPU and WebAssembly.”  #React #JavaScript #WebPerformance #Frontend #iJS