You should have a regeneration of your target and could be the speed, if what I was doing was not the same as I could have hit the top speed of 1100 atk, justify the delay has nothing to do, Poko should be :
-atk speed better than the others.
-Your ability to speed and defend should be in area.
-Your pet have abilities they use (skill in slots).
- Your passive master with soul and focus.