[Derbasti]

I use 4K screens. Virtualbox is literally unusable at those resolutions. I have to run VMs at 1080p and upscale them in Virtualbox. At 4k, simple actions such as opening the start menu take several seconds.

VMWare does this much better, but is a pain to run on up-to-date kernels.

The situation sucks, is what I'm saying.

[GekkePrutser]

Did you try KVM? I'm using that for servers so I've never tried this particular usecase but I'm very happy with it overall.