Choppy Videos
From Unofficial TransGaming Wiki
Many games suffer from choppy playback of in-game videos. This is due to differences in the Windows and Linux kernel schedulers which are difficult to reconcile.
For game intro movies, there is usually a command-line parameter that permits the intro to be skipped. For other ingame movies (eg. mission briefings) there is no known solution.
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Relevant Settings
Command Line: Allows you to set the command line options Cedega passes to the game. This can be used to bypass some movies, the exact parameters needed to do this are game-specific.

