Lately, my client will start having lag spikes in-game, and these usually tend to get progressively worse until the game just desyncs, at which point the only option I have is to quit to desktop. The game freezes, but the chat window still works normally... Naturally, this is affecting my credit/EXP/win%, and I would rather not keep losing on these because I can't play without these technical issues.

I didn't experience these during the beta (before the server went "live"), but these issues have been becoming a larger and larger problem (perhaps server-side issues?)