Installl a vm MacOS in a Mac

Hi , I install a vm MacOS 15 in a Mac and it's very slow all, graphics and all the things.
I also have anothers vm one from ubuntu and another one with a Win10 and this two works ok.
Someone knows why the vm from the Mac is working slowly? Wich one could be the problem?

Thanks

 

Please try and install or reinstall Parallels tools.

 

Thanks, I try reintalling and the same problem, I try to put more and less RAM, more and less graphic ram, more processors and nothing.
Another help? Thanks

 

When you use macOS X as a virtual machine 3D acceleration does not work in it, refer to the article for more details.