Hi Heartbeat,
Slowing it down is very good.

If you need to take more breaths per movement, this is also ok. Your breathing may actually be slower, but depending on how slow you move, you still may require more breaths per move. Just time yourself to hold your breath, when you are supposed to, and coordinate that as shown. Seven steps is better with the rhythmn of breathing in and out with each step, to support the bellows effect of energy moving up and down with each step and breath. You can slow it down, relative to whats comfortable, regarding your breathing.
love,
gallen