Chances are you do not need a “quick” copy of a vital record for your genealogical research. These services tend to charge fees that are significantly higher than those charged by the repository that actually holds the records.
The record image may already be on FamilySearch. Search the records indexes and card catalog entries to determine if they have images of the original records.
Save your money.
Usually the only reason for needing a copy “really fast,” is for a legal reason–often for the settlement of an estate or insurance purposes. You may want the copy fast for your research, but you likely don’t need it that fast.
And you’ll save money.