I tried replying to this topic to save swarming that side of the forums, but apparently I can't :http://forum.square-enix.com/ffxiv/t...Effects-Unsync

I'd like to add my own experience with the audio lag.
Running O7S last night with friends and I noticed considerable audio lag in certain areas. for example, the first set of DPS bombs I rely on the audio queue of the explosion to know 100% when to move back to the boss, but there was easily a 1 second delay compared to when the sound usually goes off.

Later on in the fight I noticed when activiating Life of the Dragon the Nastrond sound effect went off a couple seconds after I used the skill. The delay seemed at least more obvious when I was using a lot of oGCDs in succession. Like say for example I did: Mirage Dive + Life Surge - Full Thrust - Geirskogul + Nastrond - Fang and Claw
The sound effect for Nastrond wouldn't sound until well after I'd used Fang and Claw.

I'm playing on PS4 connected via Ethernet, 3.5mm jack to connect external speakers into the back of my TV.