My laptop is X1C 2016. I have been using the Rehabman's VoodooPS2Controller.kext. I have been using the TrackPoint to move the mouse pointer. I need a lot of power to move. Under Windows, I can use very weak power. Move the mouse pointer smoothly.
Recently, I found that cold booting the computer to Windows, and then rebooting into macOS, using TrackPoint to move the mouse pointer is the same experience as Windows, I can move the pointer smoothly with weak force, but after restarting or sleeping again, It takes a lot of power to move the mouse pointer.