First off I'd like to check:
Is this a new setup that you have just built?
I reckon you've got something else going on there.
What are your drivers microstep settings set up at?
I see your steps per is at 800. If you have your drivers wrong. It will tend to move at a silly speed.
For 800 per, The driver should be at 4000 (1:20) microsteps for a 5mm pitch ballscrew. Or 3200 (1:16) micro for a 4mm screw.
I ask about this because your velocity available is quite high. If you have kernel speed set at less than 45,000khz it looks abnormal.
Second.
The setting above is metric. Are your native units set in mm?