yeah, that will hurt your DPS, as well as titan is a jerk for turning at the last moment and making you repeat your HTs and IDs. 150 is pretty low for that fight still though, the friend i mention is usually in the 160-180 range on titan (he is hurt less by turns than i am). A big part of melee dps on a boss like that though is uptime. landing as many hits as possible while dodging (i'd fear on a PS3 it would be harder to perform your rotation without letting your GCD sit idle for even a moment while dodging everything)