The problem with Titan HM and a lot of the instances is that what you see is not what's really happening. Based on the time of the day, when the server is more populated, server lag happens without you knowing. I've literally had to teach myself how to time in my head when the AOEs are going to happen rather than watch for the animations or ground indicators. For example, this type of lag has been occuring a lot on the Demon Wall in AK. I don't even bother following the line animation anymore. I just move my character based on counting in my head from the when the fight starts.