No problems at all. I had the thought to myself on the most recent playthrough I started after the most recent update, and was like "It seems to take forever to save when it autosaves but if I manual save after it, it's almost instant, hmmmm, I wonder" so I altered it from 28 days to 7 and instead of a 3 minutes freeze, it only took like 2-5 seconds. So I definitely know what you were going through. And since it was so fresh in my mind I figured I'd share it if anybody else had similar issues.