iphone 16 pro max lagging

i recently bought the brand new iPhone 16 pro max and once it i madd the ios 18.0.1 update

i have a lagging in iOS software like frame drops in animations and in some apps like what’s app

i restored the iPhone from ituns and re-installed the software and i still facing the same problem!!

how can i pay 1200$ in the iPhone who gives me iPhone 4s preformance?!