This isn't exactly right. First, the demo starts with a really tiny cloth and then scales it up until your system starts slowing down. Second, he's comparing th

This isn't exactly right. First, the demo starts with a really tiny cloth and then scales it up until your system starts slowing down. Second, he's comparing the same dimensions with asm.js and non-asm.js code, and they should be equivalent in browsers without asm.js (in fact, that style of code is usually a tiny bit faster because it's hitting all the optimized parts of javascript).