Blurry images (thumbnails) on Chrome & IE

Hello,

I have a small problem with the display of the thumbnails of the photos of my products.
On the product pages it’s perfect, on the other hand on the other pages (home, categories), I have a huge loss of quality.
I have this problem only on Chrome and IE, it’s perfect on Firefox, smartphone and tablets.

The images are in 1200×1500 (240dpi) before optimization (by Imagify).
I have never had this problem with other sites (under Woodmart).

Do you have an idea of the problem ?

Thanks in advance !!!