This past weekend had an above-normal amount of poor game performance, and is something we will be looking into. We are continuing to look into the various reported causes of lag, including renown gain. We would continue to caution that Defiler of the Just has issues outside of server-client latency, and is not a good test case for lag. We fully understand people's frustration in Defiler of the Just, and will be considering some options for that particular raid in the future.