I think Windows is really getting weird about the older games. I get "smearing" on my Win10 laptop, no matter the mod I install, if I have the display "upped" to max settings. I do not have this issue on my older Win7 desktop and old nVidia drivers that Windows keeps wanting to update... This is a 560Ti, so rather old, but runs the game fantastically. Part of the trouble is that the game was written for a 30fps display, and some of the "clocks" in the game run off of that assumption...