Even though I play it on my old low end laptop, I still able to get a stable 60fps on medium settings at 1080p (Linux) and the game is still gorgeous looking probably looks better than most if not all UE5 games released in the past 3 years.
I agree with you that it's slow -- and yet, it is one of the very few games I actually finished. That's highly unusual for me. And then I went back and played it again.
It's a game designed to be sipped, not gulped.