Inverse Swipe direction

To get to the next image one has to swipe from left to right in the ape lightbox, but in my country this is very unusual. Is it somehow possible to change this to the opposite?

and i had to add

.wpape_gallery{
width: calc(100% + 15px)!important;
}

to my css in order to center the gallery perfectly plus

.mfp-bg, .mfp-wrap, .mfp-container{
position: fixed!important;
}

to avoid scrolling away from the lightbox-image on mobile phones. Is this normal or is something wrong with my template?

Thank you for an answer

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