@skywaytp That CPU usage % difference is too large to be explained by the CPU swap alone. The 8700K only adds hyperthreading and a small increase in clock speeds, so at best you would expect to see CPU usage at or just under half of what it was. But you say your CPU usage was cut down to a quarter which indicates something else was meaningfully different on the old system (like hardware acceleration not working). To pull audio from the camera, first go to the camera's web interface and make sure it is configured like the highlighted parts of this screenshot: (In my screenshot I haven't configured audio for the sub streams. You can ignore the Sub Stream settings.) Then in Blue Iris, there are a couple of places to check. One is the camera properties > Audio tab. The main concern is the Enable audio channel checkbox and IP camera stream radio button. I doubt it is relevant but you can also check on the audio settings at the bottom of the Video > Network IP camera configuration window. This is how one of my cams is configured.