Automatic Reload Page @ Apple iPhones

Hello, great working Plugin. It works fine on Desktop PCs and on Android Mobile Phones. At Apples iPhones they reload when scrolling down the Page and goes up on top of the Page. If i deactivate the Plugin on iPhones it works but without the Blogs ?? you can see what i mean on: wp.stadtgarde-offenbach.de

Thanks in advance and regards Achim