This reminds me of Facebook's "2G Tuesdays" (https://www.theverge.com/2015/10/28/9625062/facebook-2g-tues...), where they emulate their internet speed to that of emerging countries. If you are frustrated while waiting for a page to load, then your users are going to be as well.

This is a really nice way of working and you can see the results when browsing https://mbasic.facebook.com: even at 2G speeds, even with photos, pages load fast. No unnecessary background process trying to do something, all buttons are there to be clicked on already. A really smooth experience.