Facebook Ads - PPE Vs. View Content Optimization Conversion Oddity

Not sure if anyone has run into something similar in the past, but I wanted to share the experience that I'm currently having as a bit of a newbie Facebook marketer.

I'm currently running 2 campaigns to a product on my ecommerce store. The first campaign is PPE, and it's performing extremely well. My cost per purchase is $1.11, ROAS has eclipsed 10, basically looks like a pure winner.

My other campaign is optimized for Website Conversions - View Content. The ad set I'm running in there has the same exact targeting as my PPE campaign (I read this could negatively affect delivery but delivery doesn't seem to be the problem here). Long story short, this View Content ad has very cheap clicks at about $0.04, and a lot of them - over 100 clicks in just over a day at a $5 budget. What is completely bizarre to me, is that this ad has not resulted in a SINGLE add to cart conversion.

I realize that while this is not an impossible occurrence and the ad is not explicitly optimized for add to cart, I find it very odd that my PPE ad which has 210 clicks during the same period (with the same exact target audience) has 41 add to carts and 13 purchases. Since I'm a bit new at this like I said, I have almost started to feel like I'm missing something here.

My link is definitely not broken, because my website traffic has shot up dramatically since I created the view content ad and my conversion rate has fallen since this traffic doesn't seem to ever convert.

Any thoughts or similar experiences from anyone on this sub? Thanks so much for any advice you might have.