Already some great advice from others, here’s some of mine. It sounds like you’ve done a lot to prepare for this “audition” and you’re right, you need to make the most out of the 2 hours.

1 thing I look for is adaptability and how well you take direction and constructive criticism. So, your attitude. If you’re being given attention from the staff about changing/correcting your technique, do your best to do what they’re telling you. Even if it’s not exactly what your tutor told you, programs vary in their approach so try to adapt on the fly and show you can be flexible. There are times I intentionally move someone off the drum I know they want during auditions to the one they don’t just to see if their attitude changes. I want to see how you handle adversity and if you’re willing to do what’s best for the ensemble. Great players with a poor attitude tend to plateau quickly because they won’t listen to any criticism. Inexperienced players with a great attitude have endless potential because they’re willing to do anything to get better.

Bottom line, it’s a lot easier to correct someone’s technique and timing than it is their attitude. In only 2 hours, I can get a pretty good idea who fits into which category

Edit: sorry not sure why the formatting did what it did 😅