Flicking between steps results in the window scroll animations queueing. You may wish to replace $('html,body').animate({ in bootstro.go_to, with: $('html,bo

Flicking between steps results in the window scroll animations queueing. You may wish to replace $('html,body').animate({ in bootstro.go_to, with: $('html,body').stop(true).animate({ This clears the animation queue and stops the current animation between animating.