@AlexNeedham Hmm, we didn't do any changes to it in this update. Could it be that you (or the server host) have accidentally turned the setting from "transparent" to "opaque"?
@blairens We have tested it on weaker machines as well to no avail. It doesn't seem to explain this, since some of the people having these performance issues have very powerful PCs.
@ABeater3 We're currently prioritizing other things, mainly addressing issues and improving existing features (such as the traitor mode which is sorely outdated at this point), but possibly at some point in the future!