S+ Performance, we lose- I lose LP.

Nearly everygame :)

Honestly I feel if you do get a S grade you shouldent lose as much points, i believe you shld be punished but not as harshly.

team game.

If your score affected LP gain/loss, people would just play support and KS because it's easier to get a higher rank.

i think your S, A, B, etc. ranking should be the thing that matters instead of win/loss, at the very least in SoloQ

Ooh a legit argument. I have many options for you here; try setting up a skype/curse/ts call during champ select, try being positive in chat, say good job when the jungler ganks or when a laner solo kills somebody, try communicating more yourself, call for dragons at good times, try warding other peoples lanes, always have a pink on the map, group more, peel for others, man I could go on about how to not have your team be mad but this is good to start.

It's called a team game for a reason...