My website Google Pagespeed score is 33 procent, which is very slow.
Solution: smaller pictures (less Kb).
But when I upload a picture and take a look in my uploads I can see the picture plus the same picture in 5,6 or more sizes. That takes a lot of MB’s!! Why is that? Can I disable this? And what will happen then? I also have different websites with different themes and an uploaded picture appears only one time.