I've heard dropping it all the way down to 30 helps but that was with the weird animations. Though I agree, if it ran at 120 before, it would be nice to maintain that.
There's some minute setting thats bogging people down somewhere. WSE2 doesn't even work for me atm, haha. I should probably get on fixing that with a fresh install, but the game functions. I was running the game on a Pentium D last october, so I knew how horrible the fps drops and random hiccups could be. Hope the kinks get worked out, but its improving day by day. Last working build of WSE2 I tried was when the settings would default every time, and that was fixed in a short time.