Samme issue here. Send staying at 0 alot, recieve going from 0 to 10000.

People start freezing. When i fight, the damage starts showing, then suddenly a rush of all the hits going at the same time.
Mounting chocobo gets 5 to 15 seconds delay.
Delay while speaking to quest npc's.

Had no issues all through beta phase 2-4 and early access.
This only started this evening.

Connected from Norway.
Tested other online games and no problem there.