These are related: the faster the browser and the typical internet connection is, the bigger sites will be (absent some force to prevent developers from spending the entirety of the new performance budget.)

Reminds me of the "paradox" that making technology more energy-efficient has the effect of increasing overall energy use.

Jevon’s paradox

https://en.m.wikipedia.org/wiki/Jevons_paradox#Khazzoom–Broo...