Hello, @Jubaer,
1. For WooCommerce Setup, you can follow this article: https://www.wpbeginner.com/wp-tutorials/woocommerce-tutorial-ultimate-guide/
2. For the Speed Optimization of your site, you have to follow our theme documentation here: https://xstore.helpscoutdocs.com/article/100-how-to-speed-up-my-website & https://xstore.helpscoutdocs.com/article/128-how-to-improve-wp-rocket-settings-with-xstore
Hope this helps.
Regards 8Themes Team.
