Salve, sulla pagine del mio sito ho inserito una griglia con filtro. questo il link:
This takes a really long time to load. How can I speed up the loading?
Welcome to our forum.
In most case i recommend following things if you are concern about page load issue.
# Optimize images (Not image size, but image quality)
# Paginate post items to limit post count, (For filterbale this is not possible because filterable need to load all post)
I just check gtmetrix report, there is lost more chance to optimize images.
Please check here