Blank page with an embedded tweet. How bad can it be? JS: 1.5MB 🤯 PageSpeed score: 61/100 🤯 Time to Interactive: 9 sec 🤯 TBT: 1.7 sec 🤯 What hope does an average site have if a simple tweet requires MegaBytes of JS and seconds to interactivity? mhevery.github.io/perf-tests/twi…