I’ll give it a go – in the intermediary, I’ve just overwritten the option when the user is logged in so that infinite scrolling will not turn on for logged in users.
My hunch is that it is loading the full page unfortunately:
https://www.mediaweek.com.au/tv-ratings-may-7-2023-masterchef/?swcfpc=1
Here’s the link, though since you won’t be logged in, there won’t be a way to replicate it.
I’ve edited the theme file to set infinite scrolling to false when logged in – though not a long-term solution (since the change will be removed if we ever update the theme)