depends how broken an engine's interpolation is.

one reason you might want the video framerate is to cut back on explosion effects or filter distant entities or whatever if the rate drops too low.
I dunno, maybe you'd want to kick people with framerates higher than 2000 because you're jealous or something.

But yeah, the only really important rate for nq mods is the outgoing packet rate, which should generally match the server's frametime global in StartFrame.
Frame times elsewhere should be considered unreliable, as there is more than one engine that runs players/entities out of sequence or multiple thinks per frame and other such things.
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