the issue with me is when I use the geofilter the exact opposite happens. I always get matched up with players from other countries when i have it on and never within the US and its always very laggy. The game doesnt allow you to choose or see what region the player is from until the match is about to start. This is what the capcom blog says about matchmaking changes
It should now take less time to find an opponent in online matches. We’ve also added logic which avoids frequently being matched with the same opponent repeatedly.