I have a built a CNC, however i have some problem with the x axis motors. I a m running two motors, one on each side. If I in mach 3 set a axis as slave and 200step/mm, velocity 4 and acceleration equal 1 it runs very slows compare to y axis with same setting(1/20). However the motor on x axis is rated at 4A(Peak of my driver) while the y axis is rated at 3A. Do i need a new driver to be able to run the x axis at full speed?

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