Hello!
Newest VirtualBox (6.1.6) with Ubuntu 20.04 as a guest. Allocated 8GB of RAM, 128 graphics memory, 4 cores of CPU, using VMSVGA / VBOXSVGA with 3D acceleration. Guest additions installed without any errors.
When I choose any display mode apart of default, UI lags extremely. It just looks like 10Hz refresh rate.
With default view mode 3D acceleration works good, and everything is smooth. But I need larger workspace.
What could be the problem?
Thanks in advance.