To my knowledge, that is controlled by your window manager/DE.
post
replies:
services.libinput.touchpad.accelSpeed
```
At the moment, I'm using some changes in firefox to make it mostly usable there. Other applications are still usable, but in firefox the scrolling was too fast.
Here are my changes in about:config:

I think you would need something like this
services.libinput.touchpad.additionalOptions = '' Option "ScrollPixelDistance" "YOUR_SPEED" ''
https://man.archlinux.org/man/libinput.4#SCROLL_PIXEL_DISTANCE
I think this should work with touchpad as well but I havent tried it personally.
all 8 comments