added draw delay so it doesn't make my cpu scream

src/sketch.js

@@ -1,11 +1,14 @@
 
+import {noop} from './utils.js';
+
 export default class Sketch {
 	constructor(settings) {
 		this.lastNow = null;
 
 		['getContext', 'onResize', 'render'].map(method => this[method] = this[method].bind(this));
 
-		this.draw = settings.draw || function() {}; // () => {};
+		this.drawDelay = settings.drawDelay || 50;
+		this.draw = settings.draw || noop;
 		this.container = settings.element || document.body;
 
 		window.addEventListener('optimizedResize', this.onResize);
@@ -34,7 +37,8 @@ export default class Sketch {
 		this.draw(this.context);
 
 		this.lastNow = now;
-		requestAnimationFrame(this.render);
+
+		setTimeout(() => {requestAnimationFrame(this.render)}, this.drawDelay);
 	}
 }