any way to play ranked only with local (low latency) players?

From south america , constantly being matched with asian players . the quality of the game against them is terrible, specially in team games. any way to only play with green or yellow server players?

it decreases the quality of gameplay by a lot, like you cant get good muscle memory for split commands with 400 ms of ping

Make a lobby, name it “south america only”, invite some friends and hope for the best - thats the only solution I see.