Hello, I have problem with blurred images on item view. Where is the problem of this. Does is important uploaded image size or other settings that impact view of image.

Hi,
The quality of the final image depends not only from the parameters that you have set at your K2 but from the size and the quality of the original image. If for example you try to upload a 100x100 image and your width settings are much more than this number usually this will result to an image that looks fuzzy or blurry.