As what as a cricket?

Quick.

This sounds like a reference to the illustrated children's book by Audrey Wood. The title is I'm As Quick As A Cricket. Here it is on Amazon:

http://www.amazon.com/Quick-Cricket-Childs-Play-Library/dp/0859533069

The phrase "quick as a cricket" was almost certainly created for this book. It is not a common expression in English otherwise. All the occurrences of this expression in Google seem to be references to the book. If it were a standard expression in English, it would appear in some ordinary context and not just in reference to children's literature.