So I got this game last Thursday and I'm halway through now, and I've experienced performance degradation related to how much time you play, to the point of massive slowdowns when scratching the lucky tickets. Load times are also affected getting worse and slower, e.g. in the levels of the Living Dead Party hub it takes a whole lot of time to load the menu when you've completed one of the musical stages there (way longer than those 16 seconds that John mentioned in the video).
I am not sure if it happens because of long playthroughs or using sleep mode when the game is running in the background.
Nevertheless I've noticed that these problems are solved when I close the game and run it again.
Anybody have these same issues?