your link seems fine to me, also on mobile devices...
In your screenshot the images look like they have got a heavy re-compression...
So maybe your mobile-internet-provider is recompressing the image during transfer...
Try your example using the same mobile device but with Wifi to check if that might be the case.
Thanks for your reply!
But it seems that this is not a matter of compression by the provider.
It all happened after I “combed” the code in my skin . But there are no settings related to quality.
I will try to solve this problem myself.
I found the reason!
This is related to your plugin https://krpano.com/forum/wbb/index.php?p…&threadID=15097
I used to turn it on just for the desktop, but then I changed it to webgl.
Please check it on your mobile device, on a certain zoom, this effect may occur.