Moomoo

We are getting an interruption every minute. Hubby has put the starlink on the roof facing a certain direction against the chimney. Is that a problem? In the country with lots of trees around. Just wondering how Highup we should go. Should we place the satellite flat or should we place the satellite on a pole higher up? What is the ideal Mbps we should be getting? several questions at once, sorry but we need help.