^ This. Since I moved to PS4 my lag has disappeared. Sometimes I get it (rarely), but nothing a router re-set and PS4 restart does not fix

Also, depends on what you class as lag. Dodging AOEs and getting hit I am a bit "meh" on whether that really is lag....but if I am talking to an NPC or my Retainers and I get stuck in menues, or attack a mob and my hit misses repeatedly then suddenly I get a disproportionaly massive hit off - I class that as lag