Give me a break. It just happens that you’re the one person whose phone doesn’t have any of the issues that everybody else’s phone does. Setting up as new makes no difference. I’ve used several brand new iPhones 8/8Plus/7 since iOS 11 has been out and they’re all doing the same thing. The 3dTouch issue and home button lag (slower than iOS 10.3.3) are there on all of them. Show me a video of your phone running a public version of iOS 11 that works just as fast as a phone running 10.3.3. You can’t.So you’re calling me a liar? Or you’re so deluded in thinking that people are pretending something doesn’t exist?
Restore your phone and set up as new. No replies until you do so. Have a nice day.