Desktop usage is almost always going to feel laggy in a VM because you don't have a real GPU inside the VM and it will fallback to some non-accelerated framebuffer mode. There are some GPU virtualization solutions, for example QEMU has virgl that offers 3D acceleration, but in my experience it's buggy/not ready and doesn't offer near bare metal performance.

The only way to get near bare metal graphical performance in a VM is by using PCI pass through of an entire GPU, but that requires an extra GPU, is non-trivial to setup and comes with a lot of caveats.