How to change default scrollspeed,scrollamount,scrollinertia of a webpage

Question

I am tring to change the the default scrolling speed,amount and inertia of a webpage.I google a lot,but in vain

Fortunately,later,this day,I found a plugin which all

Answer 1

My adapt to smooth on element working: Codepen

$('.smooth').on('mousewheel', function(e){
  wheel(e.originalEvent, this)
})

function wheel(event, elm) {
    var delta = 0;
    if (event.wheelDelta) delta = event.wheelDelta / 120;
    else if (event.detail) delta = -event.detail / 3;

    handle(delta, elm);
    if (event.preventDefault) event.preventDefault();
    event.returnValue = false;
}

function handle(delta, elm) {
    var time = 1000;
      var distance = 100;

    $(elm).stop().animate({
        scrollTop: $(elm).scrollTop() - (distance * delta)
    }, time );
}