Sorry, I phrased that badly. By “ignoring performance,” I meant something more like “writing resilient code that can handle swings in performance.” For example,

Sorry, I phrased that badly. By “ignoring performance,” I meant something more like “writing resilient code that can handle swings in performance.” For example, having generous deadlines where possible. Performance is fuzzy, but fast code that has lots of headroom will be more resilient than code that barely kees up.