Haven't had any lag issues since 6pm last night. But for the first 6 hours I had the phone (6S, 128gb), I had all the described lag here, especially if waking phone after not using it for a minute or longer.
But haven't been able to reproduce all evening after 6pm last night or this morning. Went away in its own.
But haven't been able to reproduce all evening after 6pm last night or this morning. Went away in its own.