Images previews quality loss

Since recently, whenever I upload a picture on the desktop version it looks blurry, it's loosing drastically the quality in the preview and enlarged preview. We need to “open in browser” in order to see the image in its original quality which is really inconvenient.
Also it seems to me that everyone else’s content keep their quality both in preview, enlarged preview and opened version.
I have contacted the support, we did everything we could to fix this but nothing. As a content creator, working on visual photography this is really a problem right now and need to be fixed, even if a compression is needed. Plus as a nitro user i was hoping for quality maintenance, this should concerns images and not only video/stream content.