[_Zenith_]

You can most likely stay put if you still are going downscroll and 1.75x speedmod (it isn't readability that is changing, it is your finger setup changing here).

Slowing down might give you a slight boost to accuracy but it hinders readability, and Speeding up might give you a deficit in accuracy (at first) but helps readability. I look at it almost situational in terms of how I play.

I would recommend starting on a 4-key spread that makes your fingers feel in place and in control, like DFJK or ASKL (tighter spread imo helps your speed where farther spread helps your consistency).