It was pretty stable before the recent patch now I’m getting massive FPS drops in combat to the point where even basic questing is torture. Any kind of serious content is out of the question.
Seems to be worse on certain classes. Paladin was quite a lot worse than DH, maybe due to more particle effects?
That said, when I tried turning-down all the graphics to lowest, it arguably made the FPS drops worse!
Tried turning off sound, disabling all mods, updating my drivers etc. This is 100% an issue with the game itself.