@andrewcurthoys is currently working on implementing Bundling and Minification into our web pages.
Basically what this means is that instead of having 10 different CSS files on a page, each of which has to be downloaded individually, we squish them all together into one big CSS file. This is more efficient.
This won’t affect things much when you’re clicking around all day every day as a staff member, but it should make the initial page load for a new visitor to the site much more snappy.