Have you set the limits of travel yet? Use the window button to put the window up to the top and hold the button down for five seconds. Then run it down and hold again.
Here is the link to Pelican's how to article. The Bentley manual also is well written, regarding windows.
Take your time, the window adjustments can be finicky.
https://www.pelicanparts.com/techarticles/Boxster_Tech/77-BODY-Window_Regulator/77-BODY-Window_Regulator.htm