Touch screen problem

[Yurble]

Hi! I am not sure if it is a bug or not, but I just feel very disturbed. It seems tapping two close points quickly and repeatly on the screen will be detected as a straight line rather than points, which makes some of my apps can't function probably. Just like this youtube videos: https://m.youtube.com/watch?v=xPoDd9DoJfs
So, is it possible to deactivate this "auto correct" function? Thanks!

[MarlonUk1]

it only happens on sketch, or drawing apps.. you can check your screen perforamance in diagnostics. settings>about phone> diagnostics

[Roberto17]

I have the same problem too from time to time, tapping in one single line in the screen and I have signals problems too??  Always cuts off and I need to restart to get the signals back