A way to use individual performance for lp gains and losses
We should use the kill participation metric, since it's a good measure of carrying and work for all roles. Like, if you participate for 75% of kills, it's 25% above 50%. So if you win, you get 25% more lp gains x 2 (so +25 with gains of 20). If you would lose tho, you would lose less lp (like -15 for gains of +20)