I will carry out a complete audit of your web page from the SEO point of view, and propose solutions so that you can implement each of the lacking aspects, and thus appear higher in the Google search engine rankings.
I'll give you metrics like your Page Rank and Domain Rate; which links point to your web, which ones you should delete and how to find new ones (link building).
Usability: how well your page is structured and what you could do to improve the user's experience in it; How fast is your website and how to optimize it.
If you have duplicate content or not, and other less technical aspects that will allow you to launch your e-commerce upwards.