Issues when scrolling on the Navigation Pane

I am not sure if this is a Windows 10 or Surface Book issue.

Basically if when I scroll on the navigation pane two things happen:
- The scrolling is slow and no smooth
- When scrolling down there are some weird visual effects on the bottom of the pane

This happens when using the touch pad or the touch screen but not when using a mouse.

Here is a video where I reproduce the problem:



Does Somebody know something about it?

Thanks.

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