[IIsi50MHz]

This is true for me, as well. Whenever I start a 50 MHz computer and something is instantaneous instead of displaying a "Please wait…", or I start a modern computer with the Haiku operating system instead of Windows or Linux, I'm reminded just how responsive things can be.

On Android, I stumbled upon a file explorer, called Little File Explorer, that feels like this. It's 170 KiB, and generally opens directories without a feeling of transition. Instead of feeling like it's laboriously building a view, it feels almost like the view's already built. Alas, it doesn't yet remember scroll position when paging back.

Modern things can make stuff that would be slow, fast; but they also usually make stuff that can be fast, slow. I believe this normalisation of slowness is a "Normalisation of Deviance".