How can I speed up travel on this Boxford router? What new stepper motors to get?

[Nicholas Collier]

I have this Boxford 500HSR. The travel speed is very slow. If I try to make the travel faster using the external pendant controller, I get a sound like the motors are missing steps.

Maybe this machine is slow because it is more of a light milling machine than a router. I want to use it more like a router.

I can't identify the motors because they have no marking on them. The GS-D200S drivers are rated at 2amps at 2.5v output.

Perhaps somebody can suggest a stepper motor kit to use purely from experience, or at least the a ballpark figure of what Nm rating I should go for.

The machine is pretty solid with a ball screw pitch of 5mm. I will be cutting phenolic laminate 4mm thick with a 3mm cutter.

When I have cut this material in the past with a hand router, it likes to be cut at about 3meters/minute