ARP_ASUSNo he not used tools .i asked that the fps issue.That use video capture card stream purpose fps change 120fps range they tell it's fake fps and remove video capture card it shows 90fps again...
BGMI officially supports up to 90fps.
BGMI 120fps can be unlocked using tools available only, this can be done by anyone. As an official I won't recommend or suggest you to do it. It's up to you.