I don't know how you rate, but the Opus 5.5 is literally stuttering and lagging when scrolling on a Macbook Air M3 (for me).
(Chrome, also incognito)
The Opus 5.5 implementation is noticeably slow on my machine as well (Firefox, Fedora, Gnome Wayland, AMD 6800U).
Interesting! Do you have webgl disabled for incognito or for chrome in general? I wonder if it's trying to do software rendering.
FWIW, I have literally the exact same configuration (M3 air, google chrome). Here's a recording on mine where I'm seeing 60fps: https://non.io/video/video-3587018401.mp4
Mac Air M1 in Safari here, buttery smooth.
Fine on arc search (which I think is just WebKit) on iOS.
Also stuttery on Edge (Chromium), so there might be a pattern here
More info on this - I ran a few tests on my mac and linux systems with chrome/firefox. I highly suspect this is due to gpu acceleration being disabled. https://image.non.io/e7165331-432b-45c3-986e-c2973f12d377.we...
As soon as gpu acceleration is disabled, the webpage goes from 60fps across the three systems I tried to ~7-20fps when software rendering is forced.
I suspect if you go to chrome://gpu you'll find something different from what I have here: https://image.non.io/a47a1b03-1b87-4fd5-92a2-b39e62b1cfd9.we...