General Slowness on iOS 18 on 15 Pro Max?

I have an iPhone 15 Pro Max on which since the iOS 18 update, everything’s been running as if the phone is unable to cope up and seems underpowered. There are stutters within the keyboard, the settings app, games just take forever to open and sometimes just crash and have to be restarted etc. are you guys also on the same boat, especially with the 15 Pro Max? Thanks.

Update: With iOS 18.0.1 the aforementioned issues seem to have been addressed.