Advanced Settings allows you to manage advanced features like Google Analyutics, Ajax Content, Use CDN, Load CSS in Footer, Load JS in Footer, Deffer JS, Async JS, Show Preloader, Show Scroll Progress etc. Let's discuss above list one by one.
Google Analytics ID: You can add the Google Analytics ID to your Website here.
Ajax Content: Select YES to load content with Ajax and NO to load content normally with page load.
Use CDN: Select YES to load CSS and JS from CDN and NO to load CSS and JS from the same domain. The default value is YES.
Load CSS in Footer: Select YES to load CSS in the footer and NO to load CSS in the Head. The default value is YES.
Load JS in Footer: Select YES to load JS in the footer and NO to load JS in the Head. The default value is YES.
Deffer load JS: Select YES to Deffer load JS and NO load JS normally. The default value is YES.
load JS asynchronously: Select YES to load JS asynchronously and NO to load JS normally. The default value is YES.
Show Preloader: Select YES to enable the website preloader and NO to disable the website preloader. The default value is YES.
Show Scroll Progress: Select YES to enable scroll progress and NO to disable scroll progress. The default value is YES.