How do Stepper Motor Drivers Overcome the Speed Restrictions Due to a Charging Coil?

[mattnedgus]

You are correct in that nema34 motors usually don't give you the required performance increase above nema24 motors.

In all honesty, given the speed you're looking for, I'd look at servos.

I'd love to but aren't they about £500 (motor+driver) per axis?