Interesting. I wonder if the Instagram slowness is due to Stylo, we have had troubles on Instagram (specifically wrt data URI parsing) before, but IIRC we fixed

Interesting. I wonder if the Instagram slowness is due to Stylo, we have had troubles on Instagram (specifically wrt data URI parsing) before, but IIRC we fixed most of that. Of course these troubles were when IG was unreasonably slow, it's quite possible there are further issues to be fixed there that we never noticed because it was "good enough". Or Chrome's approach is just superior for IG and some other sites. Quite possible. Still, this sounds like something to investigate.