Let's talk a but about waterfall optimization – the first thing that happens in Mr.Page's life. The best way to optimize and speed up the waterfall is to have less stuff in it. The fewer page components, the faster the page – simple as that
. ….. 1. parallel byte download streams (for instance, loading JavaScript in parallel with LABjs) — if you take one 100k file and download it as two 50k files, it'll download (in theory) in half the time, but then factoring in HTTP …