Ongoing issues with swat and breakout playlist

Hi all,

Can anyone advise whether I should use focused, expanded or balanced in swat and breakout?

I’m bronze 4 and i’ve noticed at none peak times it’s hard to get a game.

At busier times it seems I have to back out after every match then search again.

Strange thing is that when I do backout and go back in it finds a game straight away.

I have open NAT and 50mb download speed. Good upload speed also. I have tried resetting the xbox to default settings and still get open NAT.