I use Firefox and while it wasn't lightening fast, it was not creeping slow, either. Got through it all in about 6-7 minutes for each cat. I have three, so I just averaged their responses and got a 25. Mac and Kimba are my most intelligent (Mac's on the upper end of normal, Kimba is a kitty Einstein), while Ming is on the lower end of normal. The questions that got me were the ones about teaching my cat tricks. Are they for real? I've never taught any of my cats anything! They pick up things by observing, but I've never been able to teach any of them "tricks".