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1 year agoI don’t know enough about how Lemmy works on the back end - but maybe something like a PiHole blocking all traffic to the domains of instances you don’t like. I’m unsure if the device requests that data directly from the other instance or if the instance you’re connected to retrieves that data and sends it as it’s own.
This could also be limited by your router, and/or what band you’re on. 2.4GHz WiFi is indeed limited to around 300-400 Mbps whereas 5GHz can reach speeds in excess of gigabit. It can also change depending on how far from the router you are and what sort of obstructions are between you and the router.