On this page https://silksilk.ru/benefits/ I have logos (Vogue, Elle, etc). These images look like they are of poor quality, especially on mobile version.
I uploaded the images of high quality and set certain image size to make all of them the same size. How can keep high quality after I make these logos the same size (about 200×100)?
Remove the size and set “full” do not try to make images with equal size setting 200×100 it would not work. Settings 200×100 means that all the images are compressed to this size and then uploaded to the page as the result they are blurred. You need to cut images of the same size and proportion, upload them and set the full size.