Why my photos all over the site are really low quality

My Photos are low quality even when I make them smaller than 1000px, it looks really bad.

it’s a theme setting, not sure where, I’m using Brooklyn.

Foldlitbox.com

thanks!!

Should I change theme? which one is better quality?

What do you mean by re-edit all the photos using another logics of designing? I tried edit them and upload again and it look the same

Hi! It’s been a year since your question but I thought I’d step in. It is most likely a theme code issue (I had this very same problem for a whole year.) While it is nothing for the theme developer to disable resizing, when I kindly asked for it, their response was negative. It took me a while, but Spotlight is probably the best free theme that displays high quality images. I switched and all of my pictures were showing just great. However, my frustration about the lack of support was so big, that I decided to move on and wave bye to shopify (but that’s another story.) My best luck to you!