After a while, the slug crashed. I rebooted it, and it restarted mt-daapd with same settings, but without debugging.
Now, some 9 hours later its still inaccesible by the soundbridge. Still very slow.
its not the logging thats tearing speed away THAT much. It does, but just to arather minor extent.
I’ll run it with -d1 or -d2 now.