Err... Can you explain what "wide" mode is? I don't have face detection on because I don't see a need for that. I also read somewhere on the Internet that face detection actually slows the AF down. Not sure how true that is.
why not give it a try on the face detection and also the Eye AF since u have the camera?
[video=youtube_share;rpyeaxmX46I]http://youtu.be/rpyeaxmX46I[/video]