Slow menus have been an issue for a while, what I've noticed more recently though are ridiculously long load screens going into PvP matches. I'm not kidding I swear sometimes I can be sitting there with 30 second to minute long black screens or longer (with the PvP map name in the corner) just waiting for the match to load in, that and I've been noticing more lag in general. I'm just going to say it, but the only thing that has changed that could effect something like that that I'm aware of (unless I'm missing something) is the recent release of that rushed dumpster fire and bad deal of a new console known as Google Stadia.