olegnax Olegnax_Core::core_settings Olegnax\Core\Block\Adminhtml\System\Config\Form\Info on-off-trigger Magento\Config\Model\Config\Source\Yesno If disabled, lazy load script and css will not be loaded. As a result Theme and extensions which rely on owl carsouel will not work and drop an error. So disable it only if you decided to not use owl carousel at all and removed all of the theme blocks and widgets which rely on owl carousel script. on-off-trigger Magento\Config\Model\Config\Source\Yesno on-off-trigger Magento\Config\Model\Config\Source\Yesno