doesnt seem to be too much wrong from what i can see except your not making use of third eye/hissatsu:seigan, i suspect its probably more about uptime on the boss as melee dps plummets whenever u cant attack. But yea pop it on the sam thread and see if other people see something ive missed.
http://forum.square-enix.com/ffxiv/t...-SAM-DPS-Guide