Hello! I picked up your save file and tried running it - I can't seem to reproduce the massive slowdown you have mentioned here. Everything seems to be running fine on my end. Please reach out to me on discord (medwyn_) and we might be able to poke at this a little more to see what's going on there. Meanwhile, would you mind sending me over your PC specs? Curious if you are running something a little under powered and ED might not have the resources it needs.