Hi equilibriumx
I suggest you to edit images of these slides because at this moment, these images are set as background to show in each slide.
In desktop view, you can use this tweak to show images fully:
@media (min-width: 768px) {
.gkIsWrapper-default .gkIsSlide {
background-size: container !important;
}
}
But the images can't cover section of this slideshow.
P/s: this is commercial template of Gavick, you should renew to get support + update as well.
Regards