laiz
"Are you able to pinpoint cases where Orion is slow/sluggish and Safari works just fine?"
-> Usually when filling in any web forms, sometimes even jumping form one entry field to the other shows a small lag. In some extreme cases, I could even see typed characters appear on the screen with delay.
Otherwise, the general surfing experience has become much worse for me in the past weeks/months. (I was on MacOS 26 beta already before the public launch).
I have a feeling (can't exactly say) that the slowness started with MacOS 26. But not sure, perhaps it just coincided with timing of other Orion changes/updates.