Thank you for your valuable input on this.Just checked again to make sure. The freezing issue someone had with dino crisis i don't have with the psn release.
So then my idea was right all along, none of this is adrenaline fault, is playstation fault. I keep telling people stop expecting stuff to work when is not official. I may not be a programmer or made any of this, but i can assume adrenaline is based on official psp, and just like the official psp, games not on psn will not always have best result with compatibility.
If you have any time by chance, can you try bust a groove one or 2 on adrenaline? (Yes you will need to convert since is not on psn) I mentioned before that is not properly audio and video sync so it was problematic unplayable due to difficulty reasons, is a rhythm game.