(Relatively) High LMS CPU Utilisation during MP3 Playback

> If I switch to a 320kbit/s MP3 stream, LMS consumes up to 50% of a
> virtual core. Obviously there's no transcoding involved, so what is
> using the CPU cycles?

Is this an online stream or local media? What task is using the CPU?
What kind of player is involved? Syncing?


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Michael