Topic on Talk:South Park: The Stick of Truth
This and this should help you
Anyway please, stop advising v-sync to limit framerate. Use the proper tools, and you'll avoid additional microstuttering and input lag
Back to this game.. I wouldn't say it's hackable.. it can't simply run at 120FPS w/o issues. So it's only a palliative
And then.. are you sure that running the game at 60FPS (I suppose that's your monitor refresh rate) is still flawless? I mean.. It seems weird developers capped the game to half the supported speed... even though it could only be a leftover of the console versions