Hello,
We have analyzed your website performance and see a few issues that impact your website speed and are not caused by our theme.
1. Your shop page (and other pages as well) has an extremely large size. It is 10MB+ and of course the loading time of such a page will be very slow. It shouldn’t exceed 2-3MB https://prnt.sc/xfcr6y
2. There are lot of JS and 404 errors in the console. They are generated by other plugins.
3. Your header is not built with our header builder so we don’t know where are these “jump effects” coming from.
4. There are also a lot of third party plugins that add many JS files and increase your website weight.
5. Make sure that you have generated our theme’s CSS file using our CSS generator and reduced its size https://xtemos.com/docs/woodmart/css-generator/
Regards