Getting the same issue for about a week or two. Skills just flash when you click them, nothing happens, then suddenly it all catches up and everything happens at once only to freeze again. WvW and PvE are unplayable. Start fight>Freeze> wake up dead or watch others players blink around.
It was fine, and i’ve not had any change of hardware or software, other than arenanet’s auto-updates, and it worked flawlessly before. I’m in the UK, using Virgin Media, and on Gunnar’s Hold server. Is it just a UK problem?