Wayland Touchpad Jumping - Motion Treshold?

I just switched from Ubuntu 17.10 to Debian Buster Sid, using GNOME 3.26.2. I'm using a Thinkpad T430. See below for more information on my touchpad. $ grep -B 5 mouse /proc/bus/input/devices I: Bus=0011 Vendor=0002 Product=0007 Version=01b1 N: Name="SynPS/2 Synaptics TouchPad" P: Phys=isa0060/serio1/input0 S: Sysfs=/devices/platform/i8042/serio1/input/input2 U: Uniq= H: Handlers=mouse0 event1 -- [...] The problem is that **two finger scrolling is very unprecise due to jumping**. While I'm scrolling everything works fine, but as soon as I'm lifting up my fingers to stop, the page just randomly jumps or scrolls a bit randomly up or down. I never experienced such behaviour under Ubuntu. I suspect that the motion threshold is simply to low, so that my lifting figures are detected as another scroll. All solutions for similar issues that I found requiere to edit the conf file which, as I found out, isn't used under Wayland. So I checked gsettings but didn't find a proper key: $ gsettings list-keys org.gnome.desktop.peripherals.touchpad send-events natural-scroll tap-to-click two-finger-scrolling-enabled left-handed click-method speed tap-and-drag edge-scrolling-enabled disable-while-typing How to fix this? Thank you and have a nice day!