Scroll horiz and vertically faster with arrows in scene

I am using the shift key + arrow key in order to scroll in my scene view of the project but it’s far too slow for me to keep up with the pace of making the game and I hate reaching for the mouse most of the time whenever is possible not to. So my question is how can I speed up things a little bit so that when I hold my finger over an arrow the scene camera moves more quickly?

I think this question has allready been answered in the other direction here.
This guy wanted to slow down movement which seems to depend on Zoom Level and can’t be modified in any other way.