How can one change trackpoint scrolling speed? It's way to slow (T480s + Ubuntu 18.04). Mouse speed setting seems working fine and mouse speed is suitable but it doesn't affect scrolling speed at all. Also for some reason i don't have xinput speed and sensitivity params (to try What is the best way to configure a Thinkpad's TrackPoint? solutions).
/sys/devices/platform/i8042/serio1$ xinput --list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ ETPS/2 Elantech Touchpad id=12 [slave pointer (2)]
⎜ ↳ ETPS/2 Elantech TrackPoint id=13 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Sleep Button id=8 [slave keyboard (3)]
↳ Integrated IR Camera: Integrate id=9 [slave keyboard (3)]
↳ Integrated Camera: Integrated C id=10 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]
↳ ThinkPad Extra Buttons id=14 [slave keyboard (3)]
/sys/devices/platform/i8042/serio1$ xinput --list-props 13
Device 'ETPS/2 Elantech TrackPoint':
Device Enabled (142): 1
Coordinate Transformation Matrix (144): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Natural Scrolling Enabled (287): 0
libinput Natural Scrolling Enabled Default (288): 0
libinput Scroll Methods Available (291): 0, 0, 1
libinput Scroll Method Enabled (292): 0, 0, 1
libinput Scroll Method Enabled Default (293): 0, 0, 1
libinput Button Scrolling Button (305): 2
libinput Button Scrolling Button Default (306): 2
libinput Middle Emulation Enabled (297): 0
libinput Middle Emulation Enabled Default (298): 0
libinput Accel Speed (299): 1.000000
libinput Accel Speed Default (300): 0.000000
libinput Accel Profiles Available (307): 1, 1
libinput Accel Profile Enabled (308): 1, 0
libinput Accel Profile Enabled Default (309): 1, 0
libinput Left Handed Enabled (301): 0
libinput Left Handed Enabled Default (302): 0
libinput Send Events Modes Available (264): 1, 0
libinput Send Events Mode Enabled (265): 0, 0
libinput Send Events Mode Enabled Default (266): 0, 0
Device Node (267): "/dev/input/event5"
Device Product ID (268): 2, 14
libinput Drag Lock Buttons (303):
libinput Horizontal Scroll Enabled (304): 1