RSC: DO THEY REALLY IMPROVE PERFORMANCE?

Summary from the TLDR Dev newsletter

This performance analysis compared Client-Side Rendering, Server-Side Rendering, and React Server Components using a semi-real app, measuring metrics like LCP, data visibility, and interactivity gaps. The key finding is that Server Components alone don't improve performance in mixed client/server apps. The real benefits come from Streaming and Suspense combined with server-first data fetching, which achieved the best results (1.28s) but required a lot of refactoring and careful Suspense boundary placement.