Hello,
1) You should contact plugin author and follow the documentation first to install it in right way and make sure that everything works fine with default WC theme. If the problem appears with our theme only then we’ll be able to help you. 2) 1 product per row was set in Theme Options http://prntscr.com/j6bymj 3) We have checked your site with our theme and with default WC theme – Storefront and don’t see the very big difference (XStore https://gtmetrix.com/reports/www.stargazestore.com/2JAAtlOG , Storedront – https://gtmetrix.com/reports/www.stargazestore.com/kvSJGpIz ) 4) I see that your site was hacked because there is third-party code in theme functions http://prntscr.com/j6ctz5 Contact your server admin to solve this https://medium.com/@rakshitshah/wordpress-wp-vcd-malware-attack-e7394801895d
Regards
