Achieving an S performance should lose less points in ranked
Seriously, I had a really bad day a few weekends ago. Lost twelve games in a row. But here is the thing. I achieved an S performance 11 of the 12 games. I was playing my heart out. Making plays, helping the team, making up for others shortcomings. Getting kills, taking down towers, killing dragons etc. Yet my teams kept losing the games. Sometimes, we just got outplayed. Others it was a particularly poor player, and still others it was an afk, or a disconnect.
Simply said, if you get an S performance you should lose substantially less points, 75% less points, or at least 50% fewer points lost.