Hello, @shinestar,
The issue is caused by the slider height. so in order to solve your issue you need the Custom CSS code, Please copy and paste the below given CSS code to Porto >> Theme Options >> Skin >> Custom CSS and check back to your site after clearing the browser cache.
.vc_images_carousel .vc_carousel-inner .vc_carousel-slideline .vc_carousel-slideline-inner>.vc_item{height:auto !important;}
We hope this will resolve your issue.
Best Regards,
PThemes Team.