Scroll speed in presentation left slides pane

Hi all,

I find it very difficult to properly scroll the slides in the left pane.
If I use a mouse it is fine, but when I use a touchpad/trackpad, the speed is just impossible to use.
It looks like the UI toolkit does not differentiate between the mouse and the touchpad.

Have you found yourself in similar situation?

Operating System: Kubuntu 20.04
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
Kernel Version: 5.11.0-40-generic
OS Type: 64-bit

Best