What's the impact of abandonment on customer acquisition cost?

As a Shopify store owner running aggressive Meta ad campaigns, I'm watching my customer acquisition costs spiral out of control. Every month, I'm spending thousands on driving traffic, but a massive chunk of potential customers just... disappear. They browse products, sometimes even add items to cart, and then vanish without purchasing. It's like pouring money down the drain. My current conversion rate hovers around 2-3%, which means for every 100 visitors, I'm essentially losing 97 potential sales. When I calculate my customer acquisition cost (CAC), it's brutal – I'm spending $15-20 just to acquire a single customer, but most of those hard-earned clicks never convert. The math is punishing: high ad spend, low conversion, and mounting frustration. I know these abandoning visitors represent real revenue potential, but I'm struggling to understand why they're leaving and how to bring them back. My margins are getting squeezed tighter with each passing campaign, and I'm desperate for a strategy that can turn these ghost shoppers into actual customers without burning through my marketing budget.