Hi @decky
In general, your store is good. Clearly, some work was put in, and you did some things right. Enough content, OK images, blog, good menu, and a solid theme. A lot of payment options. But you should have more than that 0.34%.
I noticed there is no mention of your social networks anywhere. A bit strange, you should have some, no?
Second thing, your theme is a bit too clean, black and white mostly, and some parts that should have stood out more and more blended. So it could be missed, glanced over. And I could not see any video on your store, as well as some images with a human in them. I think both are important for any store to make a connection. I mean, you are not selling products only, but also the emotions they trigger. And that is missing for me.
Your home page is a bit cluttered, with too many sections. Some repeats, some could be placed more at the top. Again, that welcome message in the middle of the page is not enough to connect with customers. The About page has some insight. And as a gamer, maybe you use a good amount of those products, so a personal message on the product page could be a nice touch. Check this topic and store User feedback. Even if it’s a different niche, you can see things you could use.
And for other things, I think the header is too big, a lot of space, could be 2x smaller. It does push important content down. An announcement bar could use links. Hero slider on wider screens does get cut off a bit. In the menu and some sections and descriptions, you have & and it should not show. The product page could use some bundles and deals. You do have products that go well together. The sticky add to cart is missing for me. The cart slideout is a bit empty. Maybe an opportunity to upsell something. The checkout page could be configured a bit to match the rest of the site.
And to advertise a bit: we have a new app that helps a bit with sending the right message at the right time to customers. If you have time, check it out Atomato - clean, high-converting alerts
So to summarize, your store (game) needs better graphics, a better story, and some great cut scenes. 
Hope your sales do improve, but you also need a bit of work. Good luck.