Adjustable scroll speed

[Urumasi]

What feature would you like to request?:
A way for a mod to set it's own note scroll speed (and in turn accuracy required) instead of it being completely determined by BPM.

Additional context
This lets you have high BPM songs without the notes flying by very quickly and having an extremely tight hit window.
A lot of rhythm games allow this to be set by the user, but I don't know how this would work with maps requiring a certain amount of precision in combination with the hit "circle" the note should visually be in to be hit on the note highway at the bottom.

[Guorvo]

Wanted to add to this feature request to include player-side scroll speed adjustment.
A pretty common feature for rhythm games, to personalize the gameplay, to the user's commodity.
This doesn't extend to opportunity windows, only to sightread notes