Pretty much every JS framework has SSR, the question is really how quickly does it hydrate. React typically rates poorly there but Svelte does great, at least partially because it has a compiler to optimize (like Marko does, it appears).
Marko’s compiler is designed for partial hydration (by default, without any special developer effort), which performs quite well. IIRC they were also looking at implementing “resumability” (term coined by Qwik, for an approach that sidesteps hydration as a concept entirely). I’m not sure where they’re at on that now, but I think it’s generally safe to say that Marko prioritizes load time performance more than nearly all other frameworks.
