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How to get VirtualBox VM’s display refresh rate >60Hz?

When I run a Kubuntu guest on Windows host in VirtualBox – I only get 60Hz refresh rate on a virtual display. UI feels very slow and laggy compared to native 120/144Hz UI. How can I achieve 120/144Hz display refresh rate inside VM?

Tried both 5.x and latest 6.1.2 versions of VirtualBox, with old and new virtual display drivers, with and without 3D acceleration.

Is there any way to have 144Hz display refresh rate on Kubuntu (or other Linux) guest VM?

I already tried:

xrandr –output VGA-1 –mode 1821×1015 -r 144

In .kwinrc:

MaxFPS=144

RefreshRate=144

with no luck.