...I think you're right. I agree.
I myself don't notice 5s control center lags horribly. After I disable transparency, play with CC, and enable transparency again, I can't "unsee"
:'(
I understand folks who put a premium on their devices being silky smooth. I hope they work harder at getting animation issues under control, as it would benefit all.
I just don't think it cripples iOS 9.1 in anyway. The benefits of a far superior Safari, to me, are worth putting up with some fluidity issues.
If it we're a jerk fest and didn't allow me to use me device properly, that would get my attention.