Wow, pivot, what a trendy catchy name for marketing and merchandising. LOL. It is never too early to market properly. As a small e-commerce company, you have been blessed with a link to success. React quickly and take advantage to an opportunity, few retailers get to experience.
Yes, if your research shows that one product category is outperforming others you apply basic merchandising and marketing techniques. You add as many products as you can find to the category and test market to the max. You upsell, you down sell, you cross-sell, you offer affinity sales categories. You test different price points and different marketing techniques.