Shorts - 7-10 Second reels of clips
Instead of just having discoverable clips, take inspiration from apps like Youtube, Tiktok and Instagram and have a reel/shorts section. Give creators the option to edit and upload their short clips to a reel with other creators for the casual observers to swipe through. Encode it so that every clip ends with a link to the channel, enable likes, share and follow commands on these clips. Provide options to scroll through all channels, recommended, friends, followed channels, subscribed channels etc. Ads revenue could be generated through this , discoverability for smaller channels, or large revenue you through top creators. This could be via a separate mobile app or integrated into the current twitch app. The key would be speed.