Microsoft has recommended that Windows 10 users suffering from problems with graphics or mouse performance degradation in certain games should uninstall the latest update for the ubiquitous operating system. KB4482887 was rolled out for "quality improvements" but has ironically affected quality in a number of crucial areas.
https://www.notebookcheck.net/Windows-10-update-KB4482887-causing-issues-with-graphics-and-mouse-performance-in-certain-games.413820.0.html
Yep,, been crashing from WOT and City Skylines frequently over last 2-3 weeks... that explains... the world needs an viable alternative to MS Windows...
Mouse is sometimes slow when dragging Excel sheets on my old work laptop. It might be this update since I noticed this behavior just a few days ago.
So that's why I had some glitches in few videos I played in the last few days!
This isn't just gaming, it's everything.