Hey @udany ! I assume you’ve seen that other thread on performance already.
My suggestion would be to use Scribus instead, a FOSS desktop publisher.
As much as I love Penpot, and know it’s probably easier to use in some regards, it’s not exactly designed for this kind of thing. Setting text across multiple pages in a tool like this one is a nightmare, especially if you’re making edits that change the length (vs creating linked text frames and just pasting your entire text in Scribus).
Additionally, Scribus provides more export functions for PDF, alerts you about errors like overflowing text, and allows you to add hyperlinks (albeit, not in the most elegant way).