Abb speed problem

Hello guys,
i have a problem with several ABB irc5 robot (irb 1600):
Robot in auto is quite slow! And also, from 50% to 100% speed doesn't change!
I use vmax in movements (moveJ), tool load is correct (i also tried with 1kg load and doesn't change)
I tried with: VelSet 100, 7000
And: AccSet 100, 100
But doesn't change

What can influence robot speed?
Thank you!!

Quote from dblbeard

See what your max speed is set at in the Robot Data.

7000 1000 7000 1000
Is good enough...

Quote from dblbeard

speed_absolute_max you will find this under the motion topic.

I can't find it, where is it?
Thank you so much

Quote from dblbeard

Configuration-Motion- speed_absolute_max

I haven't it...maybe because it's IRC5 compact?

Robot is moving at 40 or 50%..
If I go at 100% is same as 50%, I think is not normal...