Surprisingly delighted with this extension. My settings for a built-in trackpad in Mid 2012 MackbookPro 15 on Ubuntu 19.10 are:
- Step size: 50
- Smoothness (Forepart): 3.04
- Smoothness: 87.42
- Acceleration Sensitivity: 124
- Acceleration by travel distance: 1.39
It removes the awkwardness on my fingers at the fresh installation. I will still have to adjust a little bit though.