We're sorry to hear you're not satisfied with the performance so far.
Are these measurements immediately after creating your tier? If your data started off on a HDD, you'd expect it would take some time to promote your Windows boot data to the fast drive.
If you've given it a few days and a few bootups, how does it break down in terms of the slowness? i.e., from power up to spinning dots, from dots to black screen, from black to login, from login to useable system?
What drives are you using? How big are they? What kind of tasks are you running that might do large disk scanning (e.g., backup services and cloud storage, anti-malware, etc.?)
You're welcome to sign up for support and send us a ticket where elstaci linked.