Take a look at the Duet and RepRapFirmware. Unlike other firmwares, it calculates the step times precisely according to delta kinematics instead of using the segmentation approximation. Yet it can do travel speeds of 300mm/sec when using 0.9 degree/step motors and 16x microstepping (160 microsteps/mm).
A simpler approach than variable microstepping is to switch to double or quad stepping at high speeds, i.e. send 2 or 4 pulses in quick succession. Many firmwares do this already, including Marlin and RepRapFirmware.
A simpler approach than variable microstepping is to switch to double or quad stepping at high speeds, i.e. send 2 or 4 pulses in quick succession. Many firmwares do this already, including Marlin and RepRapFirmware.