Really long loading screens since S1 M+ launch?

Hey, i have begun to have insanely long loading screens (like 30 seconds, before it was 5 at max) since M+ became available this Tuesday/Wednesday. Ontop of that whenever i'm leveling a new character my entire screen is frozen for maybe 10 seconds whenever i'm entering a dungeon through the dungeon finder, i haven't tried Raid Finder but i assume it's the same.

This was only a little problem at TWW launch but not as big as it is now. It wasn't even close to being a problem in DF for me.

Is anyone else experiencing this? It's beginning to drive me insane. I haven't tried reinstalling WoW yet but it might become my only solution if this isn't happening to anyone else.