Lifting the limit of 250 photographs in gallery / Version 7.0– Brine family

Hello.

Is there any way of lifting / going around the limitation of 250 photographs in a gallery module (collection)? 
I have to upload around 350 photographs and don't want to use "gallery blocks" on a blank page, as the loading time while using them, compared to collections, is extremely slow. 

Please, let me know if there's any solution to this issue, apart from moving the galleries to some other services.

Hi. If you use Gallery Blocks, we can use Lazy plugin to make the handle loading time.

Does anybody have a solution that doesn't involve a paid add-on?

50 minutes ago, jacobike said:

Does anybody have a solution that doesn't involve a paid add-on?

If you are referring to the original question about Gallery Pages on Squarespace 7.0, it is not possible to have more than 250 images. It is a fixed limit.