Hi,
I am not sure, I have a similar resolution mobile, but I don’t see the same issue. It might be a custom CSS or styling issue.
Try clearing the mobile browser cache, and if that does not help, then:
– 1. Try changing the image size a little bit. Try different values as well.
– 2. If 1. does not work, then try turning off the custom scroll script here.
I have searched previous support tickets if anyone had a similar issue, but unfortunately I could not find anything similar.