02-20-2016, 06:27 AM
Not sure if has been mentioned or not but try toning down the history states. I set it to 4, which lets me undo the last 3 moves. Since then it almost never lagged again. That's more than enough if you think about it and has the benefit of putting you into the mindset of thinking ahead and making forward progress all the time, like you would in traditional media. cheers!