Mark Llobrera, writing on a wonderful post regarding Facebook’s Instant Articles and web performance over at A List Apart:
For most of us, even the ones I would describe as pro-performance, everything in the contemporary web design production pipeline works against the very focus required to keep the web fast. Unless you make some fundamental choices and set up clear constraints, you can—and will—build and ship beautiful sites without feeling a single ounce of the pain and frustration that your users encounter when all of that beautiful imagery, CSS, and JavaScript comes trickling down their mobile network.