OT but when I open an article like this in Firefox's reader view, it often displays each image twice, first a blurry version and then the actual image. This is

OT but when I open an article like this in Firefox's reader view, it often displays each image twice, first a blurry version and then the actual image. This is frustrating when I want to print a long article from reader view as I have to go through and delete all the blurry duplicate images first using developer tools (given that I don't want to waste ink or paper). Is there a better way I can fix or work around this? I'm also interested because, as my username implies, I'm learning web dev and I would like to ensure if possible that any websites I make don't have this issue for people wanting to print pages from them.