Mouse acceleration

If I understand your question correctly, what you want to do is adjust the tracking speed of the mouse in system preferences.

 

Try this: http://osxdaily.com/2010/06/02/kill-os-x-mouse-acceleration-from-the-command-line/

Pretty good, still not quite as good as Windows however but that might be because I have a logitech mx518 and play fps's so I've become really picky about no mouse acceleration.