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Doom - Forced image synchronization with Nvidia
The synchronization can currently not be removed and affects in several respects to performance: The buffering creates an annoying input lag is extremely unwelcome especially in a fast shooter like Doom.These frames are unsuitable for repetition after synchronization dropped (dropped frames), which is manifested by Micro stuttering
http://www.pcgameshardware.de/Doom-2...times-1202711/
