I’m sure I saved a guide on how to do this but I cant find it now. if this still possible on Nomad 3, I’d greatly appreciate a link.
Do you mean GRBL’s max feedrate? If so it’s only a matter of changing $110 and $111 using the MDI command tab
If you use Fusion360 to generate Gcode, rapids are now limited to slow values in the non-paid version, but there are some ways around it