I’m having the same issue. Has only been happening since 5.35 hotfix maintenance on the 15th.
Experiencing massive lag spikes mostly in dungeon/raid content. Players and boss mechanics are constantly getting stuck in their animations and players disappearing as if they’re running down below the floor.
It’s making it almost impossible to run any content.
It’s also lagging in the city areas. Takes ages for players and NPCs to load. Crafting and even opening menus is lagging. Trying to get on a mount too.
It’s also happening with my FC mates. We play on ps4, and are all hardwired in. We’ve done troubleshooting with our ISPs and hardware. This game is literally the only thing affected.