Fix performance when parsing mania skins
Fix performance when parsing mania skins

NeoAdonis/osu,UselessToucan/osu,EVAST9919/osu,smoogipoo/osu,UselessToucan/osu,smoogipoo/osu,peppy/osu,ppy/osu,smoogipooo/osu,NeoAdonis/osu,peppy/osu,NeoAdonis/osu,peppy/osu-new,ppy/osu,UselessToucan/osu,ppy/osu,peppy/osu,EVAST9919/osu,smoogipoo/osu