Здравствуйте мой код анимации курсора сильно нагружает процессор, помогите оптимизировать
https://wonderful-raman-802281.netlify.com/<div class="wrap">
<div id="ball"></div>
</div>
<div id="qwe"></div>
var $ = document.querySelector.bind(document);
var $on = document.addEventListener.bind(document);
var xmouse, ymouse;
$on("mousemove", function(e) {
xmouse = e.clientX || e.pageX;
ymouse = e.clientY || e.pageY;
});
var ball = $("#ball");
var x = void 0,
y = void 0,
dx = void 0,
dy = void 0,
tx = 0,
ty = 0,
key = -1;
var followMouse = function followMouse() {
key = requestAnimationFrame(followMouse);
if (!x || !y) {
x = xmouse;
y = ymouse;
} else {
dx = (xmouse - x) * 0.25;
dy = (ymouse - y) * 0.25;
if (Math.abs(dx) + Math.abs(dy) < 0.1) {
x = xmouse;
y = ymouse;
} else {
x += dx;
y += dy;
}
}
ball.style.left = x + "px";
ball.style.top = y + "px";
var back = $("#qwe");
var sw = screen.width;
back.style.width = 54 - x / (sw * 0.125) + "%";
var historicTouchX = null;
setInterval(function(e) {
historicTouchX = x;
var speed = (historicTouchX - xmouse) / 20;
if (Math.abs(speed) >= 2) {
ball.style.width = 33 + "px";
ball.style.height = 33 + "px";
} else {
ball.style.width = 45 + "px";
ball.style.height = 45 + "px";
}
}, 2);
};
css
#ball {
width: 45px;
height: 45px;
background: none;
border: 2px solid black;
border-radius: 50%;
position: absolute;
left: 50%;
top: 50%;
margin: -22.5px 0 0 -22.5px;
pointer-events: none;
-webkit-transition: color 0.5s, width 0.3s, height 0.3s, margin 0.3s,
border-width 0.5s;
-o-transition: color 0.5s, width 0.3s, height 0.3s, margin 0.3s,
border-width 0.5s;
-moz-transition: color 0.5s, width 0.3s, height 0.3s, margin 0.3s,
border-width 0.5s;
transition: color 0.5s, width 0.3s, height 0.3s, margin 0.3s,
border-width 0.5s;
will-change: color, width, height, margin, border-with, transform;
}
#qwe {
background-color: wheat;
height: 100vh;
width: 46%;
z-index: 999999999;
}
