Eye strain from temporal dithering - How does Dell disable temporal dithering?

 Hey folks,
I have an XPS 13.  When I bought it it was fine.  No issues with eye strain / pain. 

I upgraded the hard drive and had to install Windows 10.  That version gave me really bad eye strain.  Painful to look at after a few minutes.  From reading online the culprit seems to be temporal dithering.

Somehow I was able to get the Dell factory image (Win 10) re-installed.  And the eye strain / pain issue went away. 

Question for the Dell Support folks:  It seems the folks at Dell have figured out a way to disable temporal dithering.  How does Dell disable temporal dithering?

Thank you