KDE mouse scrolling acceleration

Solution 1:

No, this feature is not implemented yet.

Here is the corresponding XServer issue (reported by me originally, also my patch...), this is the launchpad report, and here is a similar report for lipinput in Wayland.

I guess you could help with your vote on the issue. Or with an updated patch for libinput.

If you just want to have increased scrolling speed (by a constant factor, not accelerated/dynamic), see here, here or here.

I implemented such a feature in user space here (mouse-scroll-wheel-acceleration-userspace). This will increase the scroll speed, or accelerate the scroll speed. You would just run this in the background, with your preferred options. The code is quite simple Python code, and should be easy to modify as well.