Content download time relatively high

[GreenGecko]

Given that you're using nginx over SSL, I recommend that you enable spdy. It's only a couple of lines in the config!

If you do that, then it would be a good idea *not* to load up standard files ( jquery, etc ) from third parties, but to do so from your own site.

However, in the end, you're downloading 750KB over 85 files in under 2 seconds over a 5mbit link. A calculator tells me that's 6mbit! If you want to see what your server is capable of, use the native connection...