Elementor Gallery not loading in backend

Hello,

I have a portfolio page containing a filtrable gallery. When I try to edit the gallery and add more pohotos to it, it takes forever to load. I have tried to increase php post max size, I have deleted the gallery, updated the page and then i have rebuilt it, same thing happens.
It is also affecting the resources usage on the server, there are spikes when I try to edit this page.
Elementor support said it’s a WP problem.
Can anyone help? Thank you! 🌟