Iphone Wireless Charging is Slower

Yesterday I bought wireless Megsafe charger for my iPhone 12. I was very much curious of buying it but the experience I have after using it was very bad.

Basically I am apple product lover , but I got very much disappointing how it get charged very very slow.

I just wanted to know whether iPhone has any setting for wireless charging or its like that.

Seriously for first time I didn't love the product wireless Charger. I wanted to return the product .

Is it Possible ?