Was playing today and everything was normal. But then, right in the middle of my session, my framerate suddenly begins tanking while I'm at my home base, with no clear explanation. I didn't change any settings, and I didn't modify or add any structures since before the frames started lagging. The only thing that I think might have changed was the weather. It stopped raining, and suddenly the frames started dropping out of nowhere. When I travel to another area the frames become more normal again. It's only at my base.

It's very bizarre, because normally I would expect worse framerates while it's raining, not after it stops.