I used Tresiba for about four months last year. Since the duration of Tresiba is documented at 42 hours it takes at least a few days for the dose to become steady. I tried to keep two days in between changes. Three would probably be better. If you move too fast you may overshoot your mark and have to deal with some low BGs.
Give it time. If you slowly increment the dose you will find the one that works for you. I think it's a great insulin. If I go off the pump, even temporarily, I will use Tresiba.
Have you read any of the many discussions we've had about Tresiba over the last year or so? There'a a wealth of information there. Just click on the magnifying glass icon in the upper right side of your screen and type in Tresiba as the search term.