Drill probleme

I have a problem, when I drill holes with my V90, the drag drill down too hard in the tackle, even if drilling is sharp.
Do you have any idea.
I run with Google sketchucam and emc2.

give us an idea of the size of drill you are using , feedrate and type of spindle , and what material you are drilling , it could be your running too slow or wrong feed rate etc

I think I've found the problem, I am using a Bosch machine, but if I lift it slightly, it helps, so I will try to try with no counterweight.