> Even on a desktop PC with a fast connection, I spend so much time staring at progress bars and loading spinners as all the various bits and bobs of the interf

> Even on a desktop PC with a fast connection, I spend so much time staring at progress bars and loading spinners as all the various bits and bobs of the interface get pulled down and rendered. This means whoever wrote the app wrote it slow. React rendering performance is fantastic but that doesn't stop devs from abusing AJAX.