Exactly what I’m trying to teach my kids.

When playing with people, the goal is for them to want to play with you again, not just to win. Put the worst people on your team and teach them to be better, and go after the better players on the other team, leaving the worse players to your teammates. Or as you said, goof off a bit, or give yourself handicaps (e.g. have to “tag up” to your base between kills, can only use one weapon, etc).

If everyone goes home happy, then it’s a success. Leave the fierce competition for tournaments.