Hi @svenn36,
Please go to your Admin Panel->Appearance->Customize->Additional CSS.
Please put below CSS in the section.
.wpsisac-slick-slider.design-3 .wpsisac-image-slide .wpsisac-slide-wrap .wpsisac-slider-content{position:relative;display:block;float:left;padding:0;width:100%;}
.wpsisac-slick-slider.design-3 .wpsisac-image-slide .wpsisac-slide-wrap .wpsisac-slider-content .wp-medium-7{width:100%;}
.wpsisac-slick-slider.design-3 .slick-dots{bottom:-40px !important;}
.wpsisac-slick-slider.design-3 .slick-arrow {top: 30% !important;}
Please add then check and let me know if anything else.
Thanks,