Hi Load074,
It looks like a 24fps/23.976fps issue. 23.976fps is actually 24000 / 1001 = 23.97602397602398, and 23.97602397602398 / 24 = 0.999000999000999 or
0.999001 which is the playback rate you're seeing.
I use AATranslator so I'm not familiar with Vordio so perhaps contacting
mrlimbic (the developer) would be the best course of action... or wait for a Vordio user to post a more helpful response than mine!