I have sleep apnea, and when first starting it I needed to adjust the ramping and the air pressure - sometimes every night until things settled down. On my second or third visit to the clinic the nurse locked the settings, and I could not cope with it at what it was set to.
If you did not have the pump unlocked so you could make your own adjustments then it might be an idea to start again - I have got a more modern pump now, far quieter and a more comfortable nose cover too, so improvements are ongoing.