I don't recommend holding the page down or spacebar on the newer computers unless you significantly slow down the keystroke repeat in the computers setting. The software these days will jump pages without displaying them to catch up with the keystroke.
Tapping works best. It's not the speed it's the display. 36 frames a second works fine. Problem is that the software doesn't display 36 frames a second. It will jump to catch up with the keystroke.