The pictures on my product page are blurry. The actual image size is slightly lager that the displayed image so I don’t see why they should be blurry. When you use the mouse to hover over the image it zooms in slightly to the actual image size and the image becomes crisp.
re-uploaded a 150×150 pic in the header but the product images still seem a bit blurry.
I changed the header to fashion flat and the same occurs. is it normal? not super pretty
The different images may look different in logo element. Try to increase image a bit and check. Perhaps you will have to test several sizes of images till you find the best one.