I am facing the same thing. Especially after changing to tablet mode, using the touchscreen then back to laptop mode.My touchpad becomes very jerky and not responsive..Impossible to use the touchpad. The updated Windows 10 version is 1803 build 17134.619.
I am waiting for my 256GB ssd to arrive before i revert back to my original out-of-box image to compare.
Is this because of the Sipo TP driver crap? Thanks.