Just wanted to give the tidbit to anyone seeking answers (if these messages can be seen by others) if you first login to FFXIV on PS4 using your normal internet, shared or otherwise and *then* share the mudfish (tap driver) once you're on the Stormblood title screen you can actually get mudfish to work with the game without full vpn mode which is great as it means only FFXIV will go through mudfish. As long as you don't fully close down the game you can easily get right back into the it with (hopefully) much better performance provided you've shared the mudfish adapter again.  I was having trouble with this for a while so I felt it would help to put this out.