I've seen a few people having these issues without any fixes. I have tried everything I can think of. Reinstalling the game, changing settings in router, tried to see if modem was bridged or not with ISP but they weren't too helpful, even tried minimizing in-game graphics. I don't know what else to do.
The rest of the game does not lag for me, just the chat box. I wouldn't have noticed it if I was not in voice chat and heard people answering questions in chat that I did not even see pop up until 5-10seconds afterward.
I saw two posts on here sent to "Closed Concerns" but were they fixed?! This is getting to be really annoying.