V-Sync must be turned on in your GPU Control Panel.

This literally does nothing different to gameplay/load times. Also, turning off vsync is the only way done people are able to run the game without it stuttering or freezing all the time.

Where do you download this on PC, did you torrent it? And, I'm on Mac.

There's loads of tutorials regarding this, so there's obviously other means of getting the PC version besides torrents.

And that comment about being on a Mac? Welcome to the club m8. I wouldn't really say getting GH3 on Mac is worth it though. Mine seems to have so much shit against X-Plorers and Xbox controllers in general.

(And yes, I did torrent my version)