Not just DS2. I play like 95% of games at 60fps, so going to 30fps is always a bit rough already. The problem here is that is it hitches. The frame timing is off, so it doesn't feel consistent at all, even if the overall framerate would suggest it's fine. And again, this game is very fast-paced. Seems a lot more 'action game' than other Souls games. And action games, especially non-button mashers like this that rely on precision and timing, should really be played at 60fps.
I'm about to jump back in. I do think that even if I can get over it, this will still have seriously detracted from how I'll rate this game overall and I'll be forever annoyed that this will never get a chance to be played in full glory on a PC without any of these issues.