yes. 3d touch is shocking. i did a clean install a still faced with it. sometimes the phone is quick, other times not so. ive updated my watch and dont think i can go back to ios 10? if i could , i would as its not smooth at all on my 6s plus. its very frustrating.
restore as a new phone. I had this when I did an OTA with extreme battery drain. a fresh install did the trick. it's running smooth now with a little more battery drain compared to iOS 10