How can i save complex articles that takes long time to save?

Hello guys,
Firstable: take your time if this is to complex to answer, os i can wait your answer for tomorrow if you like.

Im making some articles that has complexity in their designs with many blocks involved to be created..

For example this one i send you here:

https://aulapro.co/noticias/ultimas-noticias/658-8-cursos-online-de-diseno-desarrollo-web-para-disenadores-principiantes-o-avanzados

This type of articles has list of products (in this case online courses) where each one has some group of blocks with: title, text, images, description text, buttons and links. When y try to save them after a number of 8 of this listed courses, normally it can´t be possible to save. Is like theres too much blocks to save so it can´t doit.

Is there a way to allow me to save an article wich can has more than just 8 courses with this design or composition?

Hope can helpme.

Best regards.