RSC Slow Performance in Node.js Runtime

[WIVSW]

I've been encountering performance issues while trying to self-host Next.js on an Ubuntu server.

When the App Router renders pages dynamically, the Next.js server struggles with handling requests concurrently.

To demonstrate the issue, I've run benchmarks to compare the performance of the App Router with the Pages Router and React.

Additionally, I've created a repository that allows to reproduce these benchmarks.

After running the benchmarks, I noticed that performance improves when I add a 'use client' directive to the page.

What do you think is causing this performance issue?
Is there a way to fix it?

[WIVSW]

For those of you who cares about SSR performance in Server Components.

I figured that its actually React issue!