Audio is delayed during recording

[Deffo]

Hi, when I record a window on my screen, the audio is delayed. I read some threads that suggested to add a delay at the encoding phase. My problem is that the delay is not constant, it increases throughout the recording...so adding a fixed delay would solve the problem only for a small part of the recording.
Any suggestion?

OBS version: 27.1.3-modified (64 bit)
OS: Linux Mint 20.02 Cinnamon (Cinnamon version 5.0.6)
Kernel: 5.4.0-89-generic