Docsearch - hitting "Records extracted are too big" for some pages in crawler

Hello, I am just getting to grips with docsearch for my static HTML site built with Hugo/Docsy.

However, I have hit an issue where the majority of my pages are getting the “Records extracted are too big” “failure” message in the Algolia Crawler monitoring section:

I am at a loss to understand why, since some of the pages which have this error literally contain a title and a link (e.g. here), whereas other pages which are much longer are crawled correctly.

I am using docsearch so my config file is provided by default.

I checked out Record Extractor | DocSearch by Algolia >>> recordVersion = V3 already

Does anyone have any ideas what I can do? With 829 out of 926 URLs hitting this error, the search results are not going to be very good…