This is undoubtedly the best phone I have come used till date, I was using Poco F1 which is the best budget phone and currently I have moved to one plus 6T and I can say the speed of this phone is unbelievable and you will feel it too the moment you start using it.
Even after opening 15 heavy apps the working of the phone doesnt hanged or lagged for a sec, I am using this phone from past 15 days and I think the only issue I have come accrossed in this phone is that it get heated after using it continuously for several hours.