Check you are not using mesa indirect rendering.
type "glxinfo |grep direct"
you should get direct "rendering:yes"
If not then something is set up wrong or your card cant support direct OpenGL rendering (unlikely if its a 'proper' graphics card).
Also, if you have the horrid "xserver-xgl" installed this will slow stuff up too.
type "glxinfo |grep direct"
you should get direct "rendering:yes"
If not then something is set up wrong or your card cant support direct OpenGL rendering (unlikely if its a 'proper' graphics card).
Also, if you have the horrid "xserver-xgl" installed this will slow stuff up too.