Add a button where it allows you to set a minimum global rating that your opponent must have in order to be matched. Very often I get matched with players who are new to the game and this has several downsides.
- I am not enjoying beating someone who doesn't understand the game (yet)
I can't imagine them enjoying the way they loose without having a clue what they are doing wrong.

A gliding scale where you slowly get better opponents as you are improving in the game should be the most pleasing learning experience.

I would not mind to wait a little longer to get a matchup where I get challenged then to farm a lot of newbie players where neither of us enjoys the game

In order not to have to much confusing stuff for the new players there could be a minimum rating requirement you need to have before you can set a rating prereq.

In order not to make people abuse the system just allow to set a minimum required rating and not a maximum required rating