Huge performance issues with several tracks in playlist at startup

[Kevin Funk]

About ~600 tracks (not part of my collection) are loaded in my playlist. After 
startup, Amarok stalls for about one minute trying to find and parse cue 
sheets.

Log attached, can someone tell me why this happens? And if it's necessary?

-- 
Kevin Funk
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<next message repeated ~600 times>

amarok:            possible encoding:  "UTF-8" 
amarok:            encoding decoded as UTF-8   
amarok:            "Read metadata from file for: Morning Sex (Feat Conrad)" 
amarok:            not a track no match                                     
amarok:            [CUEFILE]:  "/home/krf/Musik/Zero T Presents - Cheap Shots [C.I.A]/15-zero_t-long_road_(feat_steo).cue"  - Shoot blindly and missed, searching for other cue files.                
amarok:            [CUEFILE]: - Didn't find any matching cue file.                                                      

amarok:            possible encoding:  "UTF-8" 
amarok:            encoding decoded as UTF-8   
amarok:            "Read metadata from file for: Long Road (Feat Steo)" 
amarok:            not a track no match                                 
amarok:            [CUEFILE]:  "/home/krf/Musik/Zero T Presents - Cheap Shots [C.I.A]/16-zero_t-cheap_outro.cue"  - Shoot blindly and missed, searching for other cue files.                          
amarok:            [CUEFILE]: - Didn't find any matching cue file.                                                      

amarok:            possible encoding:  "UTF-8" 
amarok:            encoding decoded as UTF-8   
amarok:            "Read metadata from file for: Cheap Outro" 
amarok:         END__: virtual Meta::TrackList Meta::XSPFPlaylist::tracks() - GREPME Took (quite long) 48s