Hi, thank you for contacting us, please try clearing your cache, and restarting your computer. The log back in, If this issue still persists, please let us know.

I know this might not help much, but since my server merge, my server has lagged a lot, so I typically just play with the option to hide other peoples characters, helps the lag issue significantly while playing, but I would also suggest that you create a CS ticket, and try to describe your situation as clearly to them as possible.

Customer Service can be found here.