But why it's the slowest? Did they meet their cap for 2019, and stopped at our applications?
No one knows why. I guess each year has a different processing speed now. All remaining 2019 - 2-3 years. 2020-1-2 years. 2021-1 year. This is my wild guess only, but all stats point in that direction now.
So basically Someone who is qualified/applied for citizenship in 2019 will get citizenship at the same time as someone who newly landed in 2019. Very unfair.
It is very common sense to process applications in the order (queue/line), but here it seems totally random.
USCIS (Us immigration) usually issues RFE (Request for Evidence) if they want some info/docs from user and they never keep applicants in the dark. They simply process in the order. It is very hard to believe the order is not followed here.
Anyway, just let it take its own time and wait. Sometimes god works in mysterious ways. Peace!