Tired of being killed by invisible mobs

I kinda threw in the towel today after being killed by an invisible boss from the chaos portal areas.

Half the time when they come up their textures don't load so I have no idea where they are and i just see a glowing sword from nowhere slam down on my head.

I don't know what is going on with loading textures this league, but load times for the world map and zones has been awful and a lot of mobs are just invisible until their textures load.