Low GPU usage

Hi im experience a low usage of my gpu, my gpu is not a high end one, is a litte bit weak to be honest(ati 6750), this did happen in the beta too, and is deseperating, Heres the photos of the usage of the gpu while playing: http://i.imgur.com/mwu7e1P.png http://img27.imageshack.us/img27/6051/uief.png

In bf3 i did have a 100 usage at all times. I have the gpu oc to 890 core clock, and 990 memory clock.

My cpu is a FX 6300, and i have 6gb of ram and the mobo is asus m4a78lt-m le.

Thanks in advance.