I have the same issue as the rest of these players. After updating at 12:30 EST, logged in, noticed it a little and even more when I started moving around and going to different places. Joined a dungeon and could not even click buttons on my toolbar, the lag was so bad. Went back to work, and now five hours later I re-logged in and same issues.

NA Server: Diabolos
ISP: Time Warner
Client Location: New York - United States