There was a period a few months ago where jitsi was consistently crashing chromebooks. Obviously, if a webpage can crash the OS, it's an OS problem, but it still made jitsi unusable for those with chromebooks.
The native app doesn't work with the free 8x8 rooms, as far as I could tell.
I'm not sure I consider not crashing the OS when the conference starts 'good performance' so much as 'working'. Running it in Firefox at the time was bad performance (sluggish), haven't tested since.
