@zollotech@iSpeedtest0S It is a bug. Specular highlights will turn on and off if you restart your iPhone, doesn’t work all the time and it is more common for older iPhones to have this bug.
@nikewrayy Also when you do it really fast the slightly delayed laggy stutter does not appear when you swipe to the App Library really quickly but when you wait a few seconds then swipe to the App Library the slightly delayed laggy stutter appears.