Steps to reproduce:
Larger downloads (like the raspberry pi disk image I'm downloading, 3gb) causes noticeable slowdown on Orion, navigating between tabs, refreshing pages, clicking the downloads tab, etc. all stutter.
Expected behavior:
Ideally, downloads wouldn't cause the browser to stutter
Orion and macOS:
Orion 0.99.108.1-beta and macOS 12.0.1