Window Scrolled Down/up does not work as intended

Hi I am trying to create Mouse scrolled slider, i have three images set up as dynamic panel with 3 different states.

I have set Window scrolled up/Down interaction on page to navigate to Next and previous slide, but even single scroll, keeps moving to last slide on down scroll . Similarly it happens with “Windows Scrolled Up”.

i just want it to go to next image on each scroll either up or down.

Kindly help me to get it fixed.