My game is freezing.

 Lately, I've been noticing that the game has been jumping. Nothing too big, but it's noticeable if you look closely, like lagging or something when my character is running. I'm in the Human Noble castle right now so I'll see if it still does it in other places later.

Also, when I talk to the dog, you know, when it's like (barks happily), the game freezes for like half a second then displays the text.

This is of course the 360 version.

Game is not overheating and my 360 runs my other games just fine.

Game is installed to harddrive.

Is it that it's just the game being buggy/glitchy as hell or could it be a problem somewhere else?