Is it just me or is every story titled "10 tips on making X faster" or "how we migrated from X to Y and reduced number of servers from 10k to just 2" or "how we speed up Z by 400000%" is really just a story of "how we made our project better by stopping, checking what we really need to do, researching how to do it and then investing time to actually do it right"? There is hardly ever any new ground breaking wisdom, new revolutionary algorithm or amazing new tool, it's all about knowing what you're doing, which usually takes a few tries.