Hey, I'm having the same exact problem. I'm from Ontario as well, and everyone that has this issue, that I know of, is also from Ontario. I was playing Eashl tonight, and lagged up until 12am. Once 12am hit, the lag was gone. After the game, I went to see if the region had switched to NA East (where it should be), but it was still on NA West. I'm not sure why it was still on NA west, but fortunetly the lag was gone. This has been happening this entire week, lag from 7pm-12am, than after 12am, everything is smooth. Can someone from EA please respond and let us know what's going on.