I found myself often setting the deck to 50 fps to save some performance but still get a very fluid picture.
Do you think running the deck at the highest frequency and halving that will be substantially better then anything from 46-50 or maybe even 46-60 at native frequency?
No, that would be horrible, you only want fps that are Hz/2 Hz/3 Hz/4 etc. So for 80Hz that would be 80, 40, 20, 15, 8
Jep. That was was I thinking too.