after uploading firmware Z Axis moves very very slowly Hictop Printer

I uploaded the Repetier firmware to a hictop prusa i3 and the z-axis settings in the old firmware from marlin was 
#define DEFAULT_AXIS_STEPS_PER_UNIT   {80,80,398,94.4962144}

398 being the Z axis now everything else seems to work on on the firmware once uploaded apart from, the Z axis when i try to move in any direction it just very slowly pulses and turns  very very slowly

I have tried ZAXIS_STEPS_PER_MM  set at 80, 398, and 2559 but nothing on any values apart from different kinds of slow pulse turning

can anyone help me to find a value, please


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