I don't think I'm just imagining it, maybe it might be just me but something about one of the recent updates has caused my Monitor Configs to now take forever to just switch from one to the next. The behavior I've observed that it does pretty much every time: if you're switching from a single to multiple monitors, the wallpaper will first stretch across both monitors (didn't have this "phase" before) and stay like that for a good 30 seconds, and going back the other way, from multimonitors to single, it crams your multiple wallpapers together on to the single screen while it's "thinking" and eventually does what it should. Just wanted to give some feedback since it's a big deal for me personally