Hello Stevenxcel,
Are the audio and video in sync before uploading to YouTube, or does the issue only appear after uploading?
If the sync issue already exists before uploading, please check this FAQ on audio sync delay:
https://www.bandicam.com/faqs/audio-sync-delay/
Also, if you're recording in 4K, audio sync issues may occur.
We recommend lowering your webcam’s resolution and frame rate to reduce the risk of desync.
If the sync issue only happens after uploading to YouTube, try recording using a preset optimized for YouTube to ensure better compatibility.
Thank you.