Hello, @Aman,
1.. I have checked your site link and found no issue. The product already appears without a sidebar from left to right wave. I have recorded a video for you to know how it appears: https://streamable.com/smlaq2 Please watch the complete video and then check back to your site after clearing the browser cache.
2.. I have checked your site speed and found that it is very slow. The page takes more than 5 seconds to complete loads. Check the image: https://postimg.cc/Z97tjzDv I have underlined the cause of the site speed. The server response time needs to improve, and CSS and JS need to be inline and optimized, also the images too. So for this, you can use WP Rocket plugins on your site here is the article to know how the WP Rocket plugins work with our theme: https://xstore.helpscoutdocs.com/article/128-how-to-improve-wp-rocket-settings-with-xstore
Regards 8Themes Team.