Fallout New Vegas
Picked this one up in a certain Summer Sale for £3.74!
Anyway I seem to have serious lag with the opening bik video, pauses, sound stutters like a broken record! bik videos are CPU intensive not GPU, so I know it's not a VGA driver issue.
The game is fine constant 60fps on ultra, max draw distances, etc. (game seems capped at this as vsync is off)
I had a look into enabling HPET (High Precision Event Timer) but that made things worse so I restored the default Windows 7 Time Stamp Counter (TSC)
I have discovered a fix:
Simply run a small program in the background. Play a song on mute in the background.
Or, if you have AMD CCC, you can open it up and go to video settings, this will open up a process in the task manager called MMLoader.exe that runs continuously taking up 1% of CPU usage. This is enough to allow the CPU to play back the bik videos correctly!
Bizarre so it seems!
Does anyone have another fix for this problem?