Seek at 4x normal speed when holding shift
Seek at 4x normal speed when holding shift

This matches osu-stable 1:1. Not sure if it feels better or not but
let's stick with what people are used to for the time being.

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