Can The Ranked System Be Updated/Changed PLEASE

There honestly needs to be a way for the system to determine how much lp you lose/gain based off your KDA, I'm not saying to strictly do it based off KDA but have that incorporated some how.

I think it should be if you lose the game you lose LP and if you win the game you gain LP however based off KDA and MMR you lose less/more.

Lately, I've been in games where a player hasn't connected on my team or went AFK randomly and I get mass fed but still can't carry because it's a 4 v 5. Games where I go like 20/5/5 and still lose because of the AFK most 4 v 5s are unwinnable (Most not all, clearly there are some exceptions) and I still manage to lose like 20 LP cause of these losses (the same as I would of lost a 5 v 5). It doesn't seem fair to me, I think I should lose like 10 LP that game cause had the player connected my team would of won.

I've had multiple games where people just feed in the first 10 minutes and as a top lane main I can't do anything? What does riot expect? Me to get double fed to pick up the slack of my teammates? Games where the other 4 teammates of mine go 0/10/0 and I go like 10/5/0 need to be accounted for when determining how much LP you lose.

I'm pretty much stuck in Silver on this account when I know I'm gold material because my smurf is in gold and when I play normals I get paired with Gold 1s/2s/3s

I don't get why I lose the same LP per game because of feeders/afk when I have a great game. And I'm not complaining because I can't carry games, I feel if I have a horrible game and my teammates carry me then I should gain less LP from the win because of my performance. So I'm saying implement this system so you gain less if you did bad and still won.

Any opinions or thoughts on this?!