So the following things need to be fixed, especially on weekends when friends and family get together to raid to relax after a long week of school or work.
1) Fix the lag issues in the Curse of Strahd raid. Notably, if people starting dying in the heart phase, the lag just escalates to the point of 1 FPS for the entire party. To me this means you have some type of deadlocking going on which needs to be removed. I would guess it's something to do with the mob AI.
2) Too Hot To Handle: Tick damage is way too high even for normal. Took a party of well geared people in there tonight with Energy Sheath Fire and anything else people had for fire absorption, and still wiped from the escalating fire damage. In addition, the hit points on the Giant Forgewraiths is way too high. You get more than 2 of these up at once and the raid is over. Again the group I was in was more than capable of doing this raid on normal and I would say the difficulty is on par with an r5 which is unacceptable for a vanilla normal raid.