A common problem,I am getting the Disc to slow error accompanied by a loud audio pop . I have tried just about every suggestion that I could find to no avail. I have my audio path on an external SSD through thunderbolt.My software synths on it as well. The pop is so loud that recording or mixing is nerve racking. I have a Mac Mini and a really old Tascam US 144 interface. I was wondering if the old interface could be the culprit,or could it be the Mac mini. This is happening on projects with only one audio track and a few samplers. Help would be appreciated.