Hello Mate,
 
I fixed the height of content slider in your site by add custom css code in venus theme control panel. I think you should use ves layerslider to load slideshow on homepage (you can change it in ves pages builder – page profile), it will work better than content slider.
As the page builder profile: http://www.garagevapeco.com/index.php/home-default/?___store=default
 
If you want use layerslider, I can help you config it.
 
About the products carousel widget you should config to choose right categories to show products on homepage. You should edit widget in pages builder too.