You need an ECU flash, I have used https://2wheeldynoworks.com/ twice. Once for my FJ09 and again for my Tracer 900 GT. They are based in Kirkland Washington, just outside Seattle. You can remove and send your ECU to them and they can do it remotely, or if you have someone near you that has the know-how and you trust them, you can have them do it locally.
It isn't hard for them to do a flash, but you want to make sure they know what they are changing, and have the expertise to improve your bike's performance.
Good Luck! When you get it done, you will have a very big smile on your face as you ride for the first time. (and every time after that too.......)