why is time the issue and not moves.
I use a laptop and I think the issue is moves made and not time.
What does anyone else think

Ranks are a combination of both and this seems to suit most people. I use a laptop with a mouse which helps speed but the best tip I've seen was one from @fizzbut to use the Firefox browser. I like your avatar by the way.

Certainly moves generates the most interest judging from the chat, but then it's requires more logic over just memory. Plus as you say time can be a factor of what machine and system you're using. I'd be in favor of upping the weight moves have on the scoring over time or have a separate ranking for just moves.

I also don't think that moves count much in ranks. I can only reduce my rank by trying to do previouse games faster. Reducing moves have more fun as fizzbut said.