Dustforce related. I meant with HyperboleGaf to the fact the game is not playable or is a terrible port , it is not , as i stated before i tried 3 different versions of the game and the problems are similar in all of them , even on high end pcs the game struggles sometimes but still, is not near as bad as for example MGS3D or Jak n Daxter. So the game is perfectly playable , except for some parts where that slowdown appears and bothers you. Thats why im saying , download the Demo dont listen to GAF and judge for your own.
I haven't seen anyone call it unplayable. I would personally call it a bad port though. To me, the slowdown is bad enough to justify calling it such. It's not how the game is intended to run and play. What it is, however, is playable. I'm stil getting enjoyment out of it. I'm just very disappointed in the performance and I think warning others of what they might get into is a good thing to do even with a demo available.
Your HyperboleGaf post read to me like you were calling us liars, I don't think that's what you meant now that you clarified it in the above post but it came across to me that way initially.