High CPU load due to hassio_audio

Hi,
I’ve a reoccurring issue with high CPU load caused by hassio_audio.
I’ve seen, that there has been a similar issue, which was solved in HA release around 2021 and I don’t think think this is the same cause for me issue.

I’m running HA in Proxmox without any problems, but sometimes, out of the blue, the CPU load increases and is not going down till HA system is restartet:

From the Glances add on, I can see, that the load is caused by the hassio_audio docker container.

There are no error messages in the audio log from HA. Also the other logs contain messages regarding the audio.

Could anyone please give me direction where I can search for the cause of this issue?

Here is the glances overview: