So I started playing your mod today and I've noticed a few issues.

1. When you use the dragon staff to aggro the Royal Red on to another mob, they just fly in the air and don't go down to actually fight the mob.
2. The royal red is incredibly slow and doesn't use their breath when they're tamed. When I'm fighting a bunch of mobs, the dragon can't even do anything because it's busy trying to walk to the mob and they don't use their ranged fire breath attacks at all unless you're riding it. Even the flying is super slow to the point where I can't even take it anywhere, how am I supposed to use it for battle if it can't even get there.
   But overall great mod!