The delay can be turned off, in scroll settings near the bottom at 'Time before Scroll starts' by entering a 0 [tap the '1' and then change]. I have my touch settings set to start stop scroll so I can do the manual on the screen and my pedal setting [settings>pedal actions] to start/stop auto scroll on 1 pedal and 'activate link point or turn page' on the other one. Sorry I forgot those settings. Pro is much, much better than the original on manipulating the screen actions once you get to know it. It's one of the reasons it's called Pro.
Dell Latitude 13.5" 2-in-1 Ubuntu/Win 11
Samsung Note Pro SM-P900 12.2 Android 5.0.2
Samsung S7+, Android 12
Samsung Note Pro SM-P900 12.2 Android 5.0.2
Samsung S7+, Android 12