Not one of my favorite battles. Neither Cynic nor Self came as hard as they could have, and it doesn't have anything to do with the beat. The name disses were rampant and lines such as "I'm immune to puny goons, I'll move the moon and prove to you" are examples of just how much filler there is in this battle. I do like that Cynic used the slow beat to sound condescending with "You should really practice rapping on beat". The personals I did hear were relevant but not biting. Steve came really hard with "You write articles about yourself on rap sites" - no punches in this battle even came close to that.
Overall I think Self won this one, but neither were at their best. I don't think the tempo has much to do with it; there's always a way to change up your style.