OX CNC GRBL Settings wrong?

Hey guys,

I just built an OX CNC, and i'm having some issues getting the GRBL (0.9) settings correct.

I followed the same settings on KRAMs build page for step size, etc.. but i'm getting really slow and choppy movement. All of the components are from the official ox parts list.

What are some tips to calibrate the GRBL correctly?

I noticed if the feed rate is faster, the machine moves way more smoothly...
slow movements are really choppy and rigid.....

Any help would be appreciated.....

OX CNC GRBL Settings wrong?