Hello, Ajzafar,
Thank you for contacting us and for using XStore.
In our demo, we use CDN and cache plugin.
A CDN is a network of servers located in different geographic regions. By using a CDN, you can store your website files on multiple servers and distribute them to your visitors from the server nearest to them. This can significantly reduce the load time of your website.
A caching plugin can improve the performance of your website by storing frequently accessed data in the cache. This reduces the number of requests to the server and makes your website faster. You can use the WP Rocket plugin for it.
Avoid an excessive DOM size – a large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows. https://gtmetrix.com/avoid-an-excessive-dom-size.html)
Kind Regards,
8theme team