I built a cnc that has an ESS motion controller run on Mach 4. My motors do not run smoothly (shuddering, staggering movement) when running a cut around curves. I've tried switching from exact stop to constant velocity mode, I've expanded my look ahead lines from 20 to 190 as well as removing anything on my computer that might interfere with the cut. I've also tried adjusting the motor tuning velocity and acceleration. I've also tried adjusting the current on my stepper motors. Still I haven't been able to get the motors to run smoothly. Does anyone know what else could be causing the issue? Should I try adjusting the micro stepping on the drivers?