I'm using a Logitech Streamcam, Blue Yeti Mic, on a new Mac Mini running the latest version of Catalina and Camtasia 2020.0.1. I'm new to this and using default settings. The video quality is dreadful - it lags and is frequently pixilated. The audio and video are not synced. What do I need to adjust to make this work? I am trying to record videos for an online course.