How do browser-based games handle API requests on restricted or bandwidth-limited networks like school WiFi?

Hi everyone,

I’ve been exploring how browser-based games handle large numbers of users, particularly on slower or restricted networks like school WiFi.

It’s impressive how some platforms can support thousands of concurrent players with very little lag, even under those conditions. I’m trying to understand what kind of architecture makes that possible.

Would an API design similar to something like FishBase be a good fit for this kind of system? I’m especially interested in how things like rate limiting, caching, and handling sudden traffic spikes are typically managed.

Any insights would be appreciated. Thanks!