[zovs66]

I am running both games on a laptop, via a VM, the host o/s is windows 7, and the host has 8 CPUs and 32 gigs of ram, the guest is using 4 CPUs and 16 gigs of ram and is running windows 10. No real issues, but when I have seen what you explain, I have traced it down to my host eating up CPU resources, so when I kill them it returns to normal. So guessing it could be a CPU drain if some sort. You could try rebooting laptop and make sure no extra stuff is running and then open up task monitor and watch the CPU and start the game. Then see if anything spikes.