Hello. It seems your question has been unanswered for quite some time. If I'm not mistaken, there are several discussions on large websites here on the forum. So big that they had to be divided into two projects. If you look for such discussions, they even indicated the number of pages and the size of the project (if I’m not mistaken).

https://helpcenter.websitex5.com/it/post/259828 - oh... It was your post.

Hello I do not have a project but I had to make a project for the site of masseuses and there are about 200-300 questionnaires! and I'll be honest I recently had to make changes from the client and the project of 2 gigabytes just stopped opening! gives an error! the system works very badly I personally 2 days can not open the project