Computer specs:
nvidia geforce gtx 750 OC (1gb)
AMD A8-6600k apu quad core 3.9ghz
4gb ram
windows 7

So after September 16'th patch, I went on to play for an hour or two but when I went to central shroud (gridania) I suddenly went from 60fps to 20. According to MSI afterburner, I'm using 99% of my gpu when the game is running... even in the background alt-tabbed.

Anyone have something similar happen to you? I'm scared to run it again for fear of exploding my computer.