In large part due to composite bypass now being supported by Mir, the 3D/OpenGL gaming performance isn't a huge regression now on Ubuntu 13.10 like it was earlier on in the Ubuntu 13.10 development cycle with the experimental Mir packages.
In large part due to composite bypass now being supported by Mir, the 3D/OpenGL gaming performance isn't a huge regression now on Ubuntu 13.10 like it was earlier on in the Ubuntu 13.10 development cycle with the experimental Mir packages.