I imagine there are tools that will artificially slow down requests.
The lazy way would be to VPN somewhere as far away as possible and throttle your bandwidth. That would get you 250ms of round trip latency for free. In Antarctica we had up to 3000ms on a bad day. You learn to do stuff offline, build from source instead of download compiled binaries and use Kiwix. Nowadays it's less of an issue because you can ask LLMs questions and have them search for you and all you need to transfer is text. Much much easier than loading heavy websites.
