Personally when someone goes FCP on me I like to run a fast paced offense because my offensive flow isn't that great, thus I shoot the ball quicker and pass less resulting in better results. Also I just feel like faster paced offenses regardless of offensive flow are better against FCP.
So I guess you should use FCP if you know your opponent is using a slow paced offense. These offenses result in more passes, therefore I believe that creates more chances for causing turnovers. Obviously this is just my opinion and others may have a different one. Hope this helps in some sort of way...