I've been trying to find a way to get rid of that annoying scroll pause that chrome does while scrolling using the up and down arrow keys. It works when just tapping the keys, however I'd like for it to scroll fluid and consistently while holding them. I've tried various smooth scroll add ons but none of them seem to have the option I'm looking for.
Is it the same delay timing as the default keyboard delay setting?
Like in a text editor/notepad try holding a key or arrow, is the delay the same?
Try changing that delay so it starts repeating faster. Should be a setting somewhere in Desktop/Windows settings, probably under keyboard, but it depends on what OS/Desktop you're running.
You probably won't be able to type normally if you set it too close to a zero delay (if it will let you go that fast/low)
An extension might be even better, and wouldn't change the default keyboard settings. SmoothScroll or Smooth Key Scroll might be what you're looking for too, there are always new extension coming out so have a search.