It's your name. My brother in law, Steve Smith,must be 3,000,000 of those in America goes through this EVERY time he fills out a 4473. His is a common name, yours may be the same as a not so nice man.
It won't get any better. Steve has been putting up with this for 45+ years. Me? My FFL told me I am the ONLY buyer he has ever had who never had their application go to review. My name is a bit unusual.