I'm not sure what madVR should do, but even if your output wasn't screwed, slowing down with ReClock to 24p and then playing at 60p (pulldown) will avoid you the higher pitch, and might just fix your problem too.
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MSI MAG X570 TOMAHAWK WIFI, Ryzen 5900x, RTX 3070, Win 10-64.
Pioneer VSX-LX503, LG OLED65C9
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