All GE processing shut down 13 days ago due to a lack of government funding. Means that 42 of your 55 day wait are due to something else. That is by no means unreasonable and it is not even worth giving this another thought until you hit at least 3 months.

That may well get a lot worse as the shut down continues. Not only will there be the ordinary backlog, but for every day the government is shut down the back log gets worse.

There is no way to predict how long an application will take. Could just be that yours was in the wrong queue or that your name and DOB and perhaps other particulars are a close match to someone who is on some "bad" list or other.