The demo site runs bad on iOS. Bad scrolling (i.e. overflow not set to "touch"), animations are very choppy, videos do not play inline, unable to swipe to dismi

The demo site runs bad on iOS. Bad scrolling (i.e. overflow not set to "touch"), animations are very choppy, videos do not play inline, unable to swipe to dismiss. The last one is not a big deal, but the others are crucial.