If you're going to group poorly performing players with those on winstreaks...
Can you add some real compensation? LP mitigation? Serious MMR boost so they can skip divisions? If I have to carry someone who clearly doesn't deserve to win, it'd be nice to feel good about winning it. Likewise if I'm the one falling behind and I've got some high diamond smurf trying his/her best but we lose anyway, I wouldn't want that person to lose almost anything considering their skill. Less grind, more analytics into LP gains/losses and calculations and it'd be an enjoyable experience.