Again! Please read carefully
The number of images in groups have nothing at all to do with page loading times
Each page shows the same number of images whether you have 1 page, or 100 pages. Only one page is opening, so only one page is loading. Only one page, not all the images pages. As you go to a new page, just that one new page is opening.
So groups image numbers has nothing to do with page loading time
If you have 100 features, that will slow down opening. Hence us requesting you keep to 30 featured images so only up to 30 are loading at a time Karen has over double that on her home page which, by the way, opened just as fast as any other group for me. SO not too many images in groups but too many on her homepage.