There is no such thing as an average human being. If you have a normal brain, you are superior. There's almost nothing that you can't do. When Benjamin Carson was in fifth grade, he was considered the dummy of his class. His classmates and teachers took it for granted that Ben would take an entire quiz without getting a single question right.
Then, you will be arraigned on the Information. The prosecutor must file the Information within 15 days of the date you are held to answer at the preliminary hearing. Your trial must start within 60 days of the arraignment on the Information.
How long that is before the hearing will depend on how much preparation the barrister is going to need to do: a very rough rule of thumb is one day of preparation per two hearing days. So if your case is listed for two weeks, your employer will probably incur their brief fee about a week before the hearing begins.