I just updated to the latest version of elemental a few moments ago and I sat back down to play the campaign from where I had left off. The auto turn was running constantly, and turned my 10-20fps (not stellar but functional) into 10-20 frames per minute. Of course then I realized that the game was constantly auto-ending turns (maybe because I had a caravan going?). 

Anyway I just thought that someone else might get into the game and have a similar situation and think that something in the patch absolutely nuked performance. While that did seem to be the case at first, turning off auto turn seems to have done the trick. I figured I'd post something just in case it might help someone.