为何含有大量英文内容的贴会被自动删贴？

the length of the pre-buffering requisit (buffer files up to), selected according to the user wanted size. It hasn't any impact on the audio quality but could solve some cracks dued to "accessing to the file" problems which can occure if your hard drive is a bit ousted. It refers only to files with a smaller size than the chosen threshold.

the Playback thread priority defines the level of priority given to foobar by the system when this software tries to send datas to your audio card.
a low value could create some interference
choose max. by default, reduce the priority if you encounter some problems only.
This setting is independant from the diskwriter proposed thread priority
the "Show clipping warning" box might be ticked by clipping trackers (it will show them if their settings are good ones). Otherway, untick it to avoid some pop up from the console while playing