Answered 9 minutes ago. Immigration background checks are not like background checks completed by employers so making a comparison is unrealistic. It is like comparing apples and oranges.
In the asylum context, 9 months may not be unreasonable depending on the country you are from and the basis for your claim. A "denial" comes quick because once USCIS decides that an alien is ineligible for asylum they don't need a comprehensive background check. An NTA can be issued and the case referred to the Immigration Court. Once again, an apples and oranges comparison.
I suggest you consult with an experienced immigration attorney who can review your case. He or she should be able to give you an idea as to what you should expect and what your next move should be if more than a reasonable amount of time has passed.
While this answer is provided by a Florida Bar Certified Expert in Immigration and Nationality Law, it is for general information purposes only and an attorney/client relationship is neither intended nor created. You should seek out qualified counsel to review your case and provide you with advice specific to your situation. Call +1-561-478-5353 to schedule a consultation with Mr. Devore.
You may want to contact an immigration attorney and work with him/her to make inquiries with the asylum office to make sure your case is on track for a decision. While there is no set time for adjudicating asylum applications, the asylum office does have a duty to make a decision in a reasonable period of time.