Did something change for the profile pics? To me it looks like they are now rendered in a much lower quality than before.
Go to an athlete’s profile page and click on the picture to get it in large. While those were sharp and crispy a few days ago, they now show a rather bad, i.e. low quality.
This does seem to be a problem that isn’t by design (so it’s more of a technical bug than a deliberate change). We’re looking in to it to try to understand the cause but just an fyi that it might be some time until a fix.