Possibly licensing? Not sure though, I run my gaming VM at home with hardware passthrough and basically no issues (except fairly slow disk i/o, maybe that is th

Possibly licensing? Not sure though, I run my gaming VM at home with hardware passthrough and basically no issues (except fairly slow disk i/o, maybe that is the issue?). I think KVM is simply stronger when it comes to resource management with its VMs also running the linux kernel, it doesn't get as much freedom to balance load across your windows VMs. EDIT: The correct answer was posted by blinkingled before I finished typing this up hahah, read their post instead of this one :)