Performance issues after leaving Yd Freehold

[Former user]

I'm not entirely sure what's going on here or if others have the same problem, but it always happens to me. After leaving Yd Freehold and traveling on the world map, the game consistently becomes very sluggish. It isn't enough to be unplayable, but its unpleasant and makes the game hard to control. I assume something is still being simulated at the Freehold that causes this to happen, because entering another tile for long enough makes it go away. I've also rarely seen something similar happen after leaving some historic sites.