Regrettably, I am experiencing the same issues. Start/stop/start/stop. I have reset the network, tried an alternate connection, updated everything, reinstalled everything... I've been thorough, and it persists. Clearly, there is an issue. It was especially apparent when attempting the Titan Hard fight today. I failed miserably, because all action would pause momentarily, then resume, making it almost impossible to dodge area attacks - or even see them at times until it was too late.

This issue did not exist prior to the latest maintenance.