I noticed a couple other people had this issue, but I havent found a solution, despite my best efforts.
Basically, I'm also having the issues where the game lags to a standstill when the hero moves. If the hero isnt moving? Great FPS. Battles? Great FPS! ANYTHING ELSE--GREAT FPS. But moves on his horse? Drops to 1. Or 0. Or just teleports, regardless of the animation speed setting for hero movement. Is there a fix to this or do I just give up playing?
Also note: This never happened until I installed the expansions. It was smooth as silk before.