Hi vliora,
We are sorry to say that there is no option to use landscape images.
Moreover, uninstall and remove the Dokan plugin to delete the “Vendor info” tab.
About the lazy load and displays 2 images issue: Based on your provided information, it’s all about your lazy load plugin issue. In this issue, you need to remove the plugin to fix the issue. Because the plugin conflict with the theme.
Best Regards,
ThemeLooks Support Team