I don't see it. It looks smooth to me.
I updated the phone to 10.0.7 as soon as I received it, before I did anything other than activate it, for whatever that's worth. I didn't give it much thought because it's just how I do things when I get a new phone, but I'm starting to wonder if that's part of why I have had none of the problems others are experiencing.
Of course, some problems (like the screen tint issues) are probably hardware, and I guess I just got lucky for a change. But I've had no problems at all with this phone and am unable to reproduce app problems that other on OP's forum are reporting even if I try. Maybe the fact that I updated before doing anything else to the phone other than activate it helped.
It also could be that some people's eyes are just more sensitive than others. I had a misalignment of my eyes, apparently since I was born, that didn't manifest until I was in my 50's -- and I've passed military flight physicals starting when I was 17. My brain was compensating for the misalignment say the doctors at the V.A.
So who knows. Maybe one person sees stuttering, flickering, etc. as intolerable, and another can look at the same screen and not notice them at all.
HD1905 10.0.7