OK, thanks for trying the themes. Setting this bug to confirmed because I do see these issues especially when running glxgears or games or really anything that uses a lot of 3D. On my system, using light-themes makes the problem much worse, but I now believe it is two separate issues: One with light-themes being very resource intensive (more so than others) and another issue with nvidia driver being slow for certain types of operation.
If you are interested I reported the problem with light-themes under a separate bug:
OK, thanks for trying the themes. Setting this bug to confirmed because I do see these issues especially when running glxgears or games or really anything that uses a lot of 3D. On my system, using light-themes makes the problem much worse, but I now believe it is two separate issues: One with light-themes being very resource intensive (more so than others) and another issue with nvidia driver being slow for certain types of operation.
If you are interested I reported the problem with light-themes under a separate bug:
https:/ /bugs.launchpad .net/ubuntu/ +source/ light-themes/ +bug/769605