[tidalf]

The add-on seems to be ok for gotham for now, if needed it'll be updated but i'm not worried

The settings are for the cache, its the expiration delay before the addon fetch again the metadatas (i.e. albums infos, cover, new albums for an artist, etc.). It does nothing about an audio cache (there is no audio cache in the add-on).

I'll have a look about buffering options in xbmc and the effects for streaming flac. I agree, xbmc seems to be a little bit too demanding about network quality, it should buffer a littler more.