audio VLC playlist out of sync after a while

[voyager4000]

Hello, I'm just started with OBS Studio. I have a problem with playing a playlist in VLC video source. It's starts ok but after a minute or five the audio begins running out of sync. Please help.
iMac - Catalina - OBS 27.2.2 (64bit)

 

[voyager4000]

I recorded it on my HD and than the audio is in sync. It seems it goes out of sync at the moment it plays live on my screen