In Firefox I have grown rather dependent on the Alt+Mouse-scroll-wheel. It makes the number of lines scrolled with mouse to be at a much higher factor.
mousewheel.with_alt.delta_multiplier_y = 600
I'd say in 85% of my scrolling the speed-up is used. Scrolling with normal speed seems like running under water. But, of course sometimes it is what one want/need.
And, yes, I also use PageUp/Down, etc. but that is beside the point.
Question: Is there some similar functionality for Google Chrome?