60 FPS scrolling in browser

script.js

var body = document.body,
    timer;

window.addEventListener('scroll', function() {
  clearTimeout(timer);
  if(!body.classList.contains('disable-hover')) {
    body.classList.add('disable-hover')
  }
  
  timer = setTimeout(function(){
    body.classList.remove('disable-hover')
  },500);
}, false);

style.css

.disable-hover,
.disable-hover * {
  pointer-events: none !important;
}