Hello, Maher,
I have recently conducted a speed test on your website using GTMetrix and the results can be found here: https://gtmetrix.com/reports/nyazek.com/eTg54CZW/.
I suggest that you review the recommendations provided by GTMetrix and take the necessary steps to address them.
In particular, I recommend that you take a look at the “Avoid an excessive DOM size” issue. You can find more information about this issue in the following posts: https://docs.wp-rocket.me/article/1412-avoid-an-excessive-dom-size and https://isotropic.co/avoid-an-excessive-dom-size-on-your-wordpress-website/.
To address this issue, you should edit your page and product elements and enable lazy loading for the product elements. This should reduce the DOM structure. Additionally, you may try to reduce the DOM results on the page by reducing the number of sections of the page/elements in the footer or header.
Furthermore, I suggest that you remove/delete any themes, plugins, pages, posts, products, content, or media that are not being used on your site, as this will also have a positive impact on your site speed.
For more information on how to speed up your website, please refer to our theme documentation here: https://xstore.helpscoutdocs.com/article/100-how-to-speed-up-my-website and https://xstore.helpscoutdocs.com/article/128-how-to-improve-wp-rocket-settings-with-xstore.
We hope this information is helpful.
Best regards,
8Themes Team