Instead of making yet another file, why not just upstream optimizations into react?
It’s neat, but I don’t hit performance bottlenecks in the front end anymore.
Because you don't test on anything else than your high-end development PC ?
Curious about your experience with Astro and Remix. Also could I ask why you didn't go with Next.js since that seems like the Hot New Thing these days especially when it comes to SSR (haven't tried it myself though)?