Audio/video desync

I have a really annoying problem with my brave browser.
When i watch twitch/youtube the sound desyncs from video. I can see a streamer og person in a video talking, but the sound comes 2-3 seconds later.
How can i fix it? I have googled everywhere. i have turned off HW acelleration and deleted cache. I have no extensions.
I have this problem both on my work pc and gaming pc at home. I havent synced anything.

I see now that it only happens on twitch.
Could it be the boult in adblocker that causes this issue with twitch?

Everything is on sync on youtube with adblocker on.

I get the same issue with twitch and floatplane - no adblocker on