Gpu passthrough, if you can do that will always be most performant.

If you want the qemu/kvm equivalent of what vmware workstation does, than look into virtualgl, which is very good (a wine port on android uses this to get good performace without direct access to host hardware), but it still may not be everything you want.

Not directly my experience, but qemu/KVM is used for VM-gaming with near bare metal performance