Shared pics not as good as its original

shared photos looks very low definition. I can’t find a place to adjust to original or HD mode. or can I ?

Those are thumbnails not the original pictures.
You must tap the picture in the mobile app or hit the HD / SD toggle if present

I know I have to click the thumbnail to view the photo. There is no HD button in the corner of the photo also. The issue I’m talking appears when I view the photo from a shared link. There is no such issue when viewing from My Cloud Home app. image

The first image is saved from a shared link. Second is original