Unfortunately, I think there might be some kind of memory leak in 1.05 test as my game seemed to become lethargic after about 3 hours of continuous playing. This was not the same issue I had before. Everything slowed down. Even bringing up the menus was slow. Probably not a show stopper, but something to look at.
Hm, I'm seeing something similar. This morning, the game seemed a bunch faster last night after I had played for a long while, particularily during proccessing the next turn and the autosave takes a while and the lag is noticeable when I complete a research and select a new one, the window comes up during the autosave phase and I had significant lag last night where it would take a while to close after clicking done, while there was no noticeable lag. Even saved when a research was about to complete, shut down computer to clear cache and whatever to be sure, and it was definetly faster. I'll try to observe when it starts getting slow.
Should create a new thread for this though.