BR - Lobby does not work and crash game

Several players in the Brazilian killer instinct community have a lot of problems playing online. Lobby connections are bad, many people can not enter lobbys and several times still makes the game crash (both on Windows 10 and Xbox) and is showing a delay beyond normal to find ranked matches, only the version of steam it is not crashing but it also has an unstable connection. We followed some online championships and even participated as the PCK and we saw that the problem has occurred much more with us (Brazilian players).
We are only able to play exhibition matches, even when you try to play in a lobby with the same person that was on display, it presents the problems that I mentioned previously so it can not be a connection problem between players.