Maybe I'm just lucky to have fast Internet then. But the slowness remains with primal, comments take a few seconds to load, with a loading animation. Yakihonne is much better, a brief flash of a loading animation, less than a second. On Amethyst they are just there already when I click on a note, immediately ready for me to interact with.
Things like this matter. As load times increase, so does the bounce rate. Even a lag of 3 seconds will cause a lot of users to leave. It's why web developers spend so much time optimizing for it. It's why I cringe even I see people recommend primal for onboarding users, as it is a bad example of what Nostr can be.