It is! Sort of by accident I ended up connected to 75 relays in a development build of Nos. I just moved the event processing to a background thread and the app is surprisingly performant even 75 open websockets constantly streaming events in. You can see the FPS dropping a little and some of the avatar images are slow to load, but for an app that's 3 weeks old I'm pretty stoked! Here's a video of it: https://user-images.githubusercontent.com/1165004/223445887-cae1ed7c-b8e6-4a0f-942b-db464485bf6b.MP4