The performance and speed of your site are influenced by various servers within the site’s settings and network connectivity and server resources factors.
It’s important to acknowledge that the MasterStudy LMS plugin is a premium theme offering a comprehensive range of complex and multifunctional options. As such, it naturally demands more resources compared to simpler WordPress themes.
I can only recommend you to have a look at the attached URL link below and follow recommendations and tips in order to speed up the site loading and performance -> https://stylemixthemes.com/wp/how-to-boost-wordpress-speed-and-performance/
In addition on our live demo sites, our developers used the following caching plugins -> Autoptimize, WP Super Cache and the advanced-cache.php module on the server
Best regards