I mean, it not running at sub 30fps with 2fps animations, but instead at 60fps with full framerate animations is a pretty big upgrade I'd say.
you always have to take into account what the starting point of each game is. imagine how badly these Pokemon games are made that they ran like they did on Switch 1.
they can't fix the entire engine for a patch after all lol.
comparatively to the graphics, Pokemon Scarlet should have run at 60fps on Switch 1 already the way it looks