Ninja Foodi XL Pro Air Fry Oven Pros & Cons 3 Month Review 

It's the same with mine, I didn't think about it much initially but started noticing it more lately

Not really. I have thoughts about what would work best but all untested. For non-breaded wings I'm sure the cast iron preheated would help, maybe a brine soak overnight as well. For breaded wings maybe partially freezing them so the outside can get the crisp it needs before they start to over cook inside. I am confident anybody could make delicious wings in this oven and the recipients of those wings would be super happy. For me I know I can make them even better in my standard basket fryer and rarely am making large batches so it works. It's the quick high heat with extra air flow that you get in a compact basket fryer that allows for results similar to deep frying. In the XL Pro, it's more like making wings in a standard oven