Sao Paulo Servers Delay to find a match

São Paulo Servers have a very nice ping 10-20ms, but it takes so long to find people in matchmaking that I have to play on american servers with 120-200ms.
There are 5 Sao Paulo Servers, when you initiate the game it puts you randomly on one of the 5:

- São Paulo

- São Paulo 1

- São Paulo 2

- São Paulo CGE 1

- São Paulo CGE 2

But all of them have very low people on matchmaking, maybe it is a good idea to be able to see what's the server with most people playing?

Its not a big problem to play the normal Trios mode, but ranked takes too long and I even play with Predators, I'm PLATINUM!!