Ok, so I tried Riot and I wasn't able to get a better image quality. Here is a file I am trying to use as the background of my website. I went in, and re-edited the file from the scan, used a different profile for exporting, and when I reopened it in Affinity to check the quality, it looked great zoomed in. Then, I place it in the appropriate file size for the Wix background. It fit well, and did not have to expand the image at all. Before I saved it, I zoomed in and it was pixelated, and looked bad. Here is the screenshot, and as you can see it looks blurry. If anyone has any further advice, please let me know. Thanks!