Up this, everytime it finishes a job, it stops the game for a few seconds.

I am having the same issue

I've been having the same issue for a long while now, across various colonies with both the original mod and this one. For me it appears to have something to do with construction, as when I disable vampires from constructing game performance improves significantly. It also seems to happen in a more minor form for sowing and harvesting.

It's a real drag and I was hoping it would be fixed or a workaround would be resolved by now. With a large and growing colony of over 50% vampires, this bug literally can end up crashing my game if I'm not careful.