Slide Duration

Hi,
I’m trying to change setting of my slideshow but it seems I’m having some problem with slide duration. It seems to me that the shortest time between slides is 5 seconds. If I change duration to number smaller than 5 it does not make any changes and the slides don’t go faster. If I change it to number higher than 5 it works fine, slides go slower. Am I missing something? is there a way to change my time to 2 or 3 seconds. Thank you, Katerina

http://ww.wp.xz.cn/extend/plugins/meteor-slides/