Sounds like you guys need to motivate people in your raid to try a little harder. Being casual isn’t an excuse for playing bad, even though some people try. My approach to raiding is that it’s not just my time, but the accumulative time of everyone in the raid. That motivates me to try my best so that I can help my raid progress. If someone plays poorly and doesn’t care that they’re bogging down a raid, that means they’re uncaringly selfish, which is the worst kind.