Hi,
I have just started using this plugin with libreelec 9.0.1 on odroid C2, it works really well with an attached DAC/preamp connected via USB (being able to select a sound output that is NOT the TV is a great feature) but occasionally I would hear a click, only really noticeable on classical music as it's very slight but distracting nonetheless.
I could reproduce it by making the system busy, by using the UI a lot for example.
I managed to pretty much eradicate it by adding "Nice=-20" to the service.librespot.service file, perhaps it would even benefit from realtime priority or something like that.
Anyway, thanks for a great package.