Its any way hide logo when you scroll down and browsing this theme on mobile device. When you browse our website on mobile phone the logo take 1/3 of the screen and there is on room for the products.
currently the logo is always on top on a mobile device. If you need it to be scrollable along with the page content, let us know and we will think about implementing it. But please keep in mind that a lot of pages in this theme (on a mobile device) are depending on that space reserved on the top. This means that you will have to test a lot and most probably will have to fix many situations where the content at the start of the page is messed up because of the changed space at the top.
Please let us know if you need a way to scroll the logo anyway.