Having trouble with attaching your images? Biggest is not always the best. Uploading the biggest resolution for your image does not guarantee that your image is high resolution on our site. Keep in mind that large images also have a drastic effect on the site's page speed. Since high-resolution images are scaled down, shoppers do not normally notice the difference in resolution. It is better to upload images that are as large as how they are intended to be used. For example, if you have a picture that is 300px by 300px, you do not want to upload it as a 4000px by 4000px image.