Then your game is Glitched, I'm giving you straight up Facts Kyogre, Don't vote down.
A. You never mentioned what level your pokemon were, so how would I know? I'm basing off of pure facts, and Accelgor still outspeeds Zekrom btw.
B. You downvoted for the heck of it, seeing that my answer, that other actual good user, Voted up.
I gave nothing but correct information, both of these moves don't have any priority, at any time.