Mudra's seem sluggish?

[Ephier]

Looking at Mudra use, a thought strikes me.
Wouldn't it work if Mudra didn't share cooldowns, but instead had individual, very short cooldowns? No Ninjutsu seems to involve two repeating Mudra, so something like a one second cooldown (keeping the half second cast time) on each individual Mudra? It could allow people with even poor connections to button spam one Mudra, start its single cooldown, have a half-second grace period to hit the next one, it casts, half a second to move to the third, and then cast the Ninjutsu. Even with a Kassatsu rush, the Mudra being down for one second in theory should get back by the time the next chain is beginning.

If they did that, they would be shooting themselves in the food if they wanted to add more mudras that did involve 2 of the same button.