For the last several months or so I have been playing FFXIV on my PS4 and the one constant I've had is lagging. Sometimes it's quite severe (up to 20-30 seconds of no movement or activity). I never had these problems while playing on the PC but I had made my switch to PS4 after an update. Initially I was wanting to put the blame on SE but I found a rather un-intuitive fix that points the finger directly at Sony for the PS4 lag.

As an aside, this 'fix' is only for those that are sure they have the bandwidth to manage it and that their own internet connection is not to blame for their lag. For example.. my internet connection speed is supposed to be about 25-30Mbps download and about 10 up but my PSN connection test usually shows about 7Mbps down and .5 up.

The big secret IS..... broadcast your gameplay using Twitch or UStream(I have only tried this with Twitch). Weird, right? The only thing I can think of is that Sony dedicates more PSN bandwidth to streaming users. As such this ALMOST completely negates any lag I experience. I still get a very occasional hiccup for a half second or so that may be related to PSN, ISP, or SE connections but it's nowhere NEAR as bad as the normal amount of lag experienced.

This MAY be something that ONLY works for me but I thought I'd put the word out there in case it can help anyone else.

Good luck!