MMR System in league.

League needs an updated MMR system. maybe one that also goes based on activity in game. You can't win a game with 3 -4 people afk. and it makes no sense how the mmr system matches players up with other players that have lower win rates than yourself or terrible mmr. dropping 2 ranks with 95% of those games having people run it down or afk makes the mmr system unreliable to the point where you could probably go afk and have a better chance winning than spending your time and energy trying to play the game. Just put the game on like a movie and netflix on another screen. Updated Algorithms?