It's been a few months since Saints Row: The Third's PC release, and it's a bit embarrassing to think that some PC players are still having problems. Have you experienced choppiness, stutter, or just a general slowdown? You might be one of those affected due to your video card, in which case it might comfort you to know that the developers are working on the issue.
According to the official Saints Row forum, the issue's mainly caused by users of AMD/ATI cards in the 5xxx and 6xxx range. Patches and updates have attempted to fix the problem, but Volition admits that "we're still not up the level of quality we all expect from a Volition game."
It's lovely that they're trying to beat out a solution for us PC gamers, though I also have to wonder what's taking so long. Are you one of the affected? How long have you endured the problems and how much longer are you willing to wait?