https://github.com/alvarotrigo/fullPage.js
тут документация, там же и описание параметров. И там-же есть блок отвечающий за прокрутку. Там даже на русском есть.
//Scrolling
css3: true,
scrollingSpeed: 700,
autoScrolling: true,
fitToSection: true,
fitToSectionDelay: 1000,
scrollBar: false,
easing: 'easeInOutCubic',
easingcss3: 'ease',
loopBottom: false,
loopTop: false,
loopHorizontal: true,
continuousVertical: false,
continuousHorizontal: false,
scrollHorizontally: false,
interlockedSlides: false,
dragAndMove: false,
offsetSections: false,
resetSliders: false,
fadingEffect: false,
normalScrollElements: '#element1, .element2',
scrollOverflow: false,
scrollOverflowReset: false,
scrollOverflowOptions: null,
touchSensitivity: 15,
normalScrollElementTouchThreshold: 5,
bigSectionsDestination: null,