This has been an on going issue. Uploading any images either directly to the map layer or through the Upload option takes easily 5+ minutes if it doesn't just freeze (sometimes on a refresh it's there and other times its not). I've tried disabling all plug ins. I've tried three seperate browsers. It's really making it so I'm looking elsewhere for a VTT. These files are tiny and already in jpg format. (1MB or less)