Oh my god, why is SNSD underperforming?

Lion Heart is such a good song, and the MV is great.
The last tittle track song MrMr debuted at #1 on Melon and Lion heart didn't even reach top 5 :3
And You Think just flopped miserably. Maybe Korea are not here for their national girl group anymore.?
Their album sale is gonna put other girl groups and boy groups to shame tho xD