In WPLMS version 2.4+ we have added Page loader in WPLMS.
This switch is located in WP Admin – WPLMS – Miscellaneous
Once enabled, you will get a loading icon on the site :
Note : If the loading icon is displayed continuously on your site on any page, it means that there is a javascript issue on the page. In this case you should contact us or try the debug mode and check the plugin causing the issue.