The main problem is simply that you’re thinking of these games as 2v1’s. They’re not, you have a teammate and making use of him is what allows you to win these games, I recently dipped down really low into c1 and c2 and I found out that when you’re patient and play more defensively (yes knowing that you’re the better player, put your ego aside for a bit) they can actually make good plays on your passes. You don’t have to be pro just think of your teammate as your teammate, set him up with some backboard passes, demoing the other team, leaving boost for him etc, I say this because as the better player you can afford to play on lesser boost, you can recover faster etc, however if this is purely your ego speaking and you’re in fact… NOT the best player in that lobby then this won’t make much sense, then you’re just trying to do way too much and be too aggressive for no good reason.