Running it since beta 6, performance has been quite good. UI stutters happen, but very rarely. Everything is very fluid, and their are no annoying bugs for me aside from odd things with third-party apps. That’ll be fixed around release time.
Many people are reporting a slight lag/delay when hitting the home button while exiting an app to go back to the home screen. Also 3D Touch is having some delay and frame drops when activating.
Is far from smooth from my experience. The animation lags when force touching an app icon. It often lags when swiping to another home screen ammediately after closing an app and I’ve noticed other ui stutters to. So nowhere near as smooth as ios 10.3 imo.
It took apple ages to fix the app close animation in ios 10 so it will prob take till ios 11.3 to feel as smooth as its going to get. But to get that butter smoothness pre ios 7 back again then we will probably need a device with a 120Hz screen (7s and 8/pro/).
On the latest beta, no issues at all. Noticed one lag event yesterday that lasted for maybe 200ms at most. Otherwise as good as prod. Surprisingly, my battery life is better on the latest beta than on 10.3.3.
awful! i've had massive issues.
speaker button not working
adjusting volume
problems opening apps / then apps freezing if i do get in
camera not opening / freezing
apps closing when using them, eg spotify
phone generally turning itself
bad battery
dropping calls
call not connecting at all unless i'm home on wifi
location on weather app not working