tldr; Is there a way to achieve windows RDP comparable remote desktop performance in a KVM VM without the use of a gpu?
I have my new ryzen 3700x build running proxmox 6 as the host (debian buster). I have a windows server 2019 vm as well as manjaro kde & fedora kde spin installed. Using a windows 10 client pc with remote desktop to the windows server 2019 vm graphical performance is fantastic, youtube video’s play seamlessly in the remote browser without tearing or dropped frames its very close to local performance.
Testing both linux distros with spice with qxl enabled in the guest and with nomachine NX performance is horrendous and totally unusable. Usually the performance of NX is fantastic but it seems to be bogging down due to the lack of a gpu in the VM’s?