Based on a few things that I can test, I think you need to improve its overall speed ^{[it's somewhat slow, but on one occasion, it even got stuck in the four-dots loading animation when I clicked on an item]}.

• Live status updates of orders
• Discount alerts on related searched items
• Featured items with the lowest price tags in the past month
• An in-house system that'd handle the return of the ordered products
• Multiple crypto payment gateways to choose from ^{[preferably those with no registration requirements]}

You might want to add different categories to your homepage and while you're at it, try to include TOS, PP and FAQ pages as well.
^{- BTW, since you're looking for beta testers and also support Bitcoin, you can move this thread to the "Project Development" board by using the move button from the bottom left corner of the page.}