Set 0 interval is good tip for continuous scrolling. but too fast for 0.1 window size (minimum). Please enable 2 decimal input for window size (minimum to be 0.01) or allow interval input in milliseconds.
And it will be good if I can toggle start/stop by touch on screen (I use Android)

it's good and i like how it scroll, but it will be better when we (as a user) can custom delay to scroll. keep it up!!!