Elgato has shared a helpful guide for ensuring your internet is fast enough for streaming:
Streaming your content live online is more accessible than ever and also can be equally data hungry. From streaming right from your phone to your followers on TikTok to streaming a professional event in 4K 60fps with High Dynamic Range on YouTube, these all require some amount of bandwidth to get your live content to where it needs to be.
And:
In short, here’s the maximum bitrates supported by the services.
Twitch: 6Mbps (up to 1080p)
YouTube: 40Mbps (Up to 4K)
Also, these are upload speeds – and if you’re using both, it can take even more. I use High Quality Audio and High Quality Video in Ecamm Live, which also add to the network load.
Check out the post from Elgato and get Ecamm Live to stream from your Mac.
Also, be sure to sure use my discount code ZZ-CASSINELLI for 5% off from Elgato.