how can you do it

1. Set up a Windows XP machine.
2. Download Mypal on the Windows XP machine.
3. Navigate to ClassiCube.net in Mypal and download the 32-bit (or 64-bit if the VM supports it) Windows release.
4. Put ClassiCube.exe in a seperate folder.
5. Open ClassiCube.exe.

Ta-da. Hope this helps.

not really getting 8 fps

 

Try setting the Base Memory to something higher, like 4096 MB (will cause lag outside of guest machine if you're not careful)

Alternatively, you could press F to reduce fog.