Playback Speed and Tuning

Dependent on where I am when I am using Musescore 4 I get slightly different playback speeds. For example, when I am in school using my Bluetooth headphones the playback speed slows so much so that my C5=484Hz. At home the playback through the headphones is slightly faster, but it is at A=440Hz when playing out of the laptop speakers. I don't think that this is a problem with my headphones as they play correct pitch on all other softwares, such as spotify. I have tried adjusting the tuning on Musescore but to no avail. What could be causing this problem?