Low quality primary listing photos?

[GoldenRetweaver]

Hi everyone, I've noticed that when I check my storefront, the primary photos appear low quality sometimes, even though I know I upload them at a high resolution. Is that a common problem? 

[NanaLetha]

@GoldenRetweaver  Your photos look great to me - using my iMac.

[JackisJustVintage]

@GoldenRetweaver They also look great to me.

[ArtDollsbyJD]

Your photos look great to me.