ChrisPDuckling

At Christmas I built myself a new PC, with the following i5 8600K MPG Z390I GAMING EDGE AC GTX 1070 I've noticed that when running with the inbuilt soundcard, over time ( few minutes) I get a very noticeable sound to video lag. I've tried with the recommended drivers from MSI's website, and the suggestion i've seen floating around with using the HD audio device driver, and neither seems to help This isn't a problem with either a USB headset, or a bluetooth headset, only with the inbuilt sound card. I'm getting very frustrated with this, does anyone have any suggestions? Chris