Hi Johann,
every set up is different and you have to set each motor to its optimum by playing around with the setting until you get it running nice.
My settings are :-
X axis Y Axis Z axis
steps per mm - 800 800 880
velocity - 1750 1750 2250
acceleration - 55 65 50
step pulse - 1 1 1
dir pulse - 1 1 1
Try them but there is no guarantee they will work for your set up.
Graham.