MacicMouse - slow?

I have recently bought a MagicMouse for my MacBook Pro, but I find it really slow in movements (not scrolling). I did change the settings of the mouse and set it to the fastest possible, but it is very slow.
I don't have the same problem when I connect a normal USB PC mouse to my MacBook Pro. USB mouse is pretty fast as it is in PC.
Note: I have tested different surfaces, paper, dark surface, black mouse pad, wooden desk etc. no difference - it is still slow. (Battery is 100%)

Is everyone having the same problem? Is it normal?
I am not happy buying it if it is the the device's best performance.

What can I do to solve the problem?

If you have downloaded all the latest drivers, and still no joy, try MouseZoom for Mac - Free software downloads and software reviews - CNET Download.com

Now if there was only a simple solution to the setting of one of the buttons on my Mighty Mouse as a back button. Steer mouse is not a solution for 40 bucks.

Go into the System preferences and move all the mouse control buttons back one or two notches and see if that makes a difference.