Cutting LCP by 84% and Cloud Costs by 40%: Adaptive Edge Rendering with React 19 and Client Hints
Current Situation Analysis Most frontend performance guides stop at "use next/image" or "split your chunks." That's table stakes. If you're running a high-traffic application on Next.js 15 and React 19, your bottleneck isn't bundle size; it's the Render-Compute-Hydrate Tax.
