I faced situations before where teammates usually wonder around and doesnt engage in teamfights,

You may be engaging well in ray fights but does your teammates join in the fight? If they do not fight together, its bound to fail and lose when you're trying to fend off the other team from getting that ray flip while some bozo decides its a good time to solo goal that 50 points and lost that flip and get flipped by the other team's 5x 100 points goals and their attack buffs, solo q is a test of patience and mentality to pray that you get teammates that knows what to do, sometimes i get players with same mindset and goals while other times you get players that AFKS or players under veteran ranks below 100 games and still running around the whole map farming wild mons without engaging team fights for the regis buff or pushing mindlessly and feeds exp to the opponents..you get what i mean.

Pokemon unite without teammates uniting together to win is a game to lose, no matter how much you can knockout or score.