Very healthy Add to carts and Initiate Checkout

Hey Guys

Im Currently testing a new product on Tiktok ads to my shopify store. Im having a healthy CTR and CPC with good add to cart and initate checkout rate. These are the numbers:

Add to carts: 37 - 9,14% rate

Initiate checkout: 22 - 5,43%

Purchases: 4 - 0,99%

Store link: https://confidentallure.com/ (Optimized ofr moblie)

I am located overseas from the US where my main market is. Could any of you detect why my purchases are such a low rate?

Looking forward hearing from you guys!