Not always do users need to see every image at its full size. Often it is much better to start with smaller images and to provide an option to enlarge an image to its full size only when needed. Readers then have a much better overview of the document and its structure.

There are plenty of free open source JavaScript libraries that provide just this feature.

Click the following image and watch it expand:

(Photo taken of a section of the John Lennon Wall, Prague, 2022)