Settings in your attachment says nothing about maximum axis speed...
It says ACCELERATION RAMP not speed...

But acceleration ramp means time that machine takes to gain maximum speed from stall...
Strange that it says "m/sec" ?

X AXIS maximum speed 20.000 ??? That gives 20m/min it's way to fast in my opinion. Google says it should be less...

From the other post about same problem:



Next thing is - check X axis screw if it's clogged...