The load doesn't seem too bad to to me. The game was fairly enjoyable, though I wish there was a graphic of the spider's bursting when you click on them. It's a little on the short side, and I didn't notice any difference in picking right or left or how you treat the poro.
I think I prefer this version to the A rated one, the Summoner seems like less of a creep.
Got the same bug as kakapants. Using Firefox and Windows 7. Refresh and it's back to normal though. I'll try later with IE and Chrome.