Only two ways to fix mundra lag and takes away from class depth. Remove the .5 CD on input. That I believe is in place for animation. Or remove the entire mundra system. The mundra lag is the lag most people experience. Its the same lag people feel when they swear they move out of aoes. Nin just feels it more because of having to input 2 Or more commands back to back as quickly ad possible without the Gcd to give us the lag catch up window.

As far as nin dps...maybe they want it to be a more support class over strict dps. Just a thought.