Thank you for your feedback @trendyavinash.

To improve the performance of your website, like our demos, we usually recommend WP Rocket (https://wp-rocket.me/). Finally, we may also recommend Imagify (https://imagify.io/), to shrink your images with lowest quality loss.

Please note that this issue is related with the customization of a third party plugin, not with the use of your theme. As theme authors, the installation, setting or debugging of third party plugins isn’t part of the support we will provide.

To go further, we invite you to ask for more help from the plugin authors and post your request on their support forums:
https://wp-rocket.me/support/

I’m sure they will be able to help you solve this issue.

We remain available for all support requests related with the use of your theme.

Regards,