NextJS 13 extremely slow with a >=32KB payload in getServerSideProps

FWIW I don't think it's coupled to size anymore: https://twitter.com/Dan_The_Goodman/status/16592125619115130...

> Although I just built and did a first load with the local server and got a 561ms before-hydration, so it's something specifically with `getServerSideProps` on Vercel