Hello,
Please read this article – https://xstore.helpscoutdocs.com/article/100-how-to-speed-up-my-website , enable Lazy loading in settings of Products elements, try to play with settings of cache plugin. Update the theme and Core plugin – https://xstore.helpscoutdocs.com/article/63-theme-update https://xstore.helpscoutdocs.com/article/37-plugins-update Do a full backup before the update. If your site is live, we would recommend creating a staging site (full copy of the existing one), you can do updates there first. If everything is ok then you’ll be able to update the production site. After the update, try “Mobile Content Optimization” option in Theme options > General.
Regards
