I could accept the first time it would take a while to load the game... 15 minutes was a bit much, but I persisted with it. I've not encountered such a long load time for a game since I had to load games off of a cassette tape back int he heady days of 8 bit home computing.
To find I have to wait that long every time I want to play the game though?!?
I take this as a genuine attempt to push away Chrome users as presumably you don't want to support it. There can't be any other reason for such a horrific load time. I know it's not my connection, as I can download around 1.75Gb in 15 minutes.