Animation "speed up" - js

Question

hello I would like to know how I do in js or if you have any plugin that facilitates those animations of single pages. You click on the menu and it goes down to the section you selected, I can make animation with a fixed speed, but I wanted to make it start a little slow and increase with the scroll flow...

I have an example here >> http://www.sergioarantes.com/

IF ANYONE CAN HELP !!

thank you in advance

Answer 1

The concept of this effect can be based on easing jquery, but this site used that plugin. Besides these other:

http://owlgraphic.com/owlcarousel/
http://fitvidsjs.com/
http://suprb.com/apps/gridalicious/
https://mixitup.kunkalabs.com/

I hope I’ve helped.