Rebuild the Homepage of our Shopify store.

We are selling inflatable sup on our shopify shop([login to view URL]) for some years and we want to redesign our current website with more attractive graphics. And firstly will be our homepage. The main areas need updating are: - Top area logo should be more clear. And delete other useless item as the pic shows. The top info from left to right are free shipping/promotion info/refund policy etc - Banner area same as before or may be a little bigger - the area for the product we want to just show our only one product with a 360°rotatable 3D model(now the pic is not 3d,but we will make one) and it should have the button for color options And others text info to show the feature of our product - we want one area to show all the review we got now as pic show -footer need to be redesigned as the pic shows -the most important part is we will need to make this design show attractively on mobile,because now 70% traffic come from mobile,so we need this page to be able to adapt its graphics correctly on mobile or may be an additional page only for mobile. - Optimize all the code and remove anything that is not used and making website slow.