

Input latency includes the time it takes to render the frame. CRTs have a small inherent latency advantage compared to modern LCDs but they’re not instant and that advantage is miniscule compared to the disadvantage of the lower framerate. A game running at 30 fps on a gaming LCD will have lower input lag than a game running at 20 fps on a CRT. I’m sure there are outliers that poll inputs in a silly way that increases input lag, but for most games the render time will be the greatest factor. Performance modes usually simply reduce the render time (even if the framerate is unchanged).
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