Apex arena rating system is broken

i won 8 out of my 10 placements and got put into gold 2. got 108 points per win and 12 points per loss no matter who i was up against. whether it was masters or apex preds. it stayed that way untill i got to diamond 4. my loss points stayed the same at 12 but my win points dropped to 80. then 55. and im now in diamond 3 getting only 21 points per win. the people i go against never have masters or preds badges anymore. hell i barely even see diamonds anymore even though i win way more than i lose. the systems is messed up right now and have no clue how it works. the need to treat arenas like normal ranks and base it off of your own solo performance. 3 out of every 5 games i play i trail my team mates in dmg by at least 1000 and i can tell by the way my opponents play that they havent played any high ranked games yet. and my teamates are always gold or platt which makes no sense to me since i win way more games than i lose.