What about disabling vsync? Maybe you're using triple-buffering on 25/50Hz or something.
Edit: On the other hand, you say it happens on original hardware as well...
When watching your videos it looks like your mouse pointer (sometimes) is somewhat constrained to 45°. Especially the first and the last video. How could you achieve (digitally perfect) straight x-movements at all in sysanalyzer? That's usually impossible.
Another culprit could be your display. There might be some "intelligent" mode that enables/disables automatically depending on content (causing huge lag). Try to use a 'gaming' or 'lag-free' mode (if available).
Last edited by NoX1911; 30 December 2021 at 16:51.
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