html5 mp3 playback lagging (delayed)

Some of my mp3 files do not playback “instantly” – means it takes pretty long time before they start playing back.
Example:
http://rolli.li/ator/ <- takes up to minutes to playback
Other tracks do playback well
Example
http://rolli.li/radi8/ <- play well
I have uploaded mp3 and ogg for everything…
…tryed to add preload=”auto” without success.
Any ideas?

https://ww.wp.xz.cn/plugins/mp3-jplayer/