Dark Souls PC Mod Enables 60FPS
Currently the mod is in alpha phase and those who are interested can download it from here.
A word of warning though. Nwks has made it clear that his mod might break the game so you will have to use it at your own risk. Additionally the mod will only work in offline mode.
The 60fps mod requires Durante’s DSFix, which removes Dark Souls’ 720p restriction, and GFWL protector disabler. The following Steam thread makes it easy for anyone to follow up on the mods progress for Dark Souls PC.
Heck, just buy the game on the console and save yourself some pain.