Wi-fi performance issues

Something bad has happened with the last update. My iPhone 6S+ has big latency while opening sites via Wi-Fi. Safari and other apps working fast though. Ping and traceroute checks showing that there are no problems with connection. And Im not the only one who is facing with such problem (you can see through the reviews and find similar feedbacks).

MikeSoftZP about Google Chrome – The Fast and Secure Web Browser, v57.0.2987.