How to change blueprint draging speed?

Hi I have change my mouse dpi from 1000 to 8000, but lowered the pointer speed so that it has the same speed as before, but the problem is that if I want to drag my blueprint(move inside to see other nodes) it moves very fast and I cant find any option to lower the drag speed. Is there any way to do it besides lowering dpi?
Sry 4 bad English.