Manual brake power really bad

One question, I'm nor sure if this is strongly MD11 related or FSX in general, because the MD11 is my first bird with autobrakes.

The issue I have is that the manual brake is really weak as compared to autobrake. So when I land and have autobrake even at low, the bird slows down quite well. Once I hit the footbrakes, the deceleration really gets much slower. So when I practiced an engine failure before V1, when hitting the brakes instinctively, I overshoot the runway with like 80 or 100 knots. When I just use autobrakes, I'm fine.

I just guess it's an MD11 config problem as the calibration of the pedals is fine and goes from 0 - 100. So is there any value I could optimize or this even how this bird behaves? (Which I hardly can imagin - once you hit the brakes and autobrakes get off you're really likely going to die....)

I hope you can help!

Cheers from Franconia.