I don't think Titan is overrated. I remember the story mode quests leading up to Titan, and how the NPCs emphasized his difficulty - boy did they nail it. My first attempts were as a 34 WHM and I was operating on "landslide has a wider hotbox than what appears on the ground." Cause I could be twenty feet away from the hotbox and still be Landslided. Of course I wasn't aware of the awful lag that preempted patch 2.2 that was happening at the time. It just got to the point where the fight seem so difficult it made me upset I couldn't clear it. It took like a week to finally beat Titan. EX took 3 weeks to clear, and I was carried in that fight. But now I can heal/dps it without any problems now. Overall I'd say Titan is second to Twintania as the most difficult fight. (Haven't done T6 and beyond yet). Once I clear Ramuh Ex (he's my current wall), he'll replace usurp Twintania.

P.s.
The latency is a mechanic in the Navel. Deal with it like any other mechanic.