iPhone 15 Pro Max lagging

Ok so I purchased my iPhone 15 pro max on launch day and ever since then (even with all the recent updates) it has been buggy. I can be using basic apps and it will freeze or slightly lag. I have to close and reload the app for it to work again properly. As I type this the keyboard is lagging. I know it’s not a storage issue either since I only used 50gb of my 256gb. This phone was 1200 to be doing all this lol. Does anyone else have this issue ?