I get lag, too. I had to adjust my latency settings to get rid of it in OBS. Most software has some "latency" setting. Try adjusting yours by 200 to 500 milliseconds to see if it helps. If you have lag in your video that you've already recorded, you will need to "slide" the audio track to fix the latency. In Adobe Premiere, I have to "ungroup" the audio and video from each other. Then I use the arrow key to move the audio track over a few clicks. Then I "group" the audio and video back together. If you're using OBS, here's a course I took that shows how to use a tool to adjust your latency with OBS. https://www.udemy.com/course/obs-live-streaming-course/learn/lecture/6224424#overview Here's the video on YouTube. No need to buy the course!! A great way to fix your latency on OBS: https://www.youtube.com/watch?v=LXY69tuBfV4 Hope that helps.
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