Sound Effects Often Desynced/Delayed in Duties

Date & Time: May 24, 2018. 1:00 AM Eastern and at all times.
Frequency: Always
World name: Leviathan
Character name: Harumi Yuzuka
Monster name: Tsukuyomi, Phantom Train, Demon Chadarnook
Class/Level: Black Mage/70 and Red Mage/70
Party or solo: Party
Area and coordinates: Castrum Fluminis, Sigmascape V1.0, Sigmascape V2.0
Steps:
1. Enter any of the above duties and proceed with the encounter.
2. You will notice that most or all sound effects are often delayed by 1-2 seconds.

This issue is similar to what has always happened when an abnormally high number of sound effects occur within the same second, which usually happens when a large group of people (40 or more) is simultaneously fighting. The issue now is that this kind of awkward delay or "catch-up" is happening ALL of the time in at least these duties, but I have heard of this happening in other duties such as Ridorana Lighthouse and also with greater severity.
Please see this Reddit thread for more reports and information: https://www.reddit.com/r/ffxiv/comme...c_and_crashes/
Additionally, I think Phantom Train's locomotive sound was considerably louder or more intrusive than normal, but I'm not sure; at least something sounded a little bit incorrect there in addition to this issue. Also, when the last part of the Castrum Fluminis duty begins, I think everything sounds normal, but perhaps the severity of the issue is simply lessened there for some reason?

Connection Specs
- Type of internet connection/provider: Verizon FiOS

■ PC Specs

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