diff --git a/js/dos/ext/vis/examples/network/other/performance.html b/js/dos/ext/vis/examples/network/other/performance.html
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+<!doctype html>
+<html>
+<head>
+  <title>Network | Random nodes</title>
+
+  <style type="text/css">
+    body {
+      font: 10pt sans;
+    }
+    #mynetwork {
+      width: 600px;
+      height: 600px;
+      border: 1px solid lightgray;
+    }
+
+    #message {
+      color:darkred;
+      max-width:600px;
+      font-size:16px;
+      cursor:pointer;
+      text-decoration: underline;
+    }
+  </style>
+
+  <script type="text/javascript" src="../exampleUtil.js"></script>
+  <script type="text/javascript" src="../../../dist/vis.js"></script>
+  <link href="../../../dist/vis.css" rel="stylesheet" type="text/css" />
+
+  <script type="text/javascript">
+    var nodes = null;
+    var edges = null;
+    var network = null;
+    var setSmooth = false;
+
+    function destroy() {
+      if (network !== null) {
+        network.destroy();
+        network = null;
+      }
+    }
+
+    function draw() {
+      destroy();
+      var nodeCount = document.getElementById('nodeCount').value;
+      if (nodeCount > 100) {
+        document.getElementById("message").innerHTML = '<a onclick="disableSmoothCurves()">You may want to disable dynamic smooth curves for better performance with a large amount of nodes and edges. Click here to disable them.</a>';
+      }
+      else if (setSmooth === false) {
+        document.getElementById("message").innerHTML = '';
+      }
+      // create a network
+      var container = document.getElementById('mynetwork');
+      var data = getScaleFreeNetwork(nodeCount);
+      var options = {
+        physics: { stabilization: false }
+      };
+      network = new vis.Network(container, data, options);
+    }
+
+    function disableSmoothCurves() {
+      setSmooth = true;
+      network.setOptions({edges:{smooth:{type:'continuous'}}});
+      document.getElementById("message").innerHTML = '<a onclick="enableSmoothCurves()">Click here to reenable the dynamic smooth curves.</a>';
+    }
+
+    function enableSmoothCurves() {
+      setSmooth = false;
+      document.getElementById("message").innerHTML = '<a onclick="disableSmoothCurves()">You may want to disable dynamic smooth curves for better performance with a large amount of nodes and edges. Click here to disable them.</a>';
+      network.setOptions({edges:{smooth:{type:'dynamic'}}});
+    }
+
+
+  </script>
+  <script src="../../googleAnalytics.js"></script>
+</head>
+<body onload="draw();">
+<p>
+  Generate a random network with nodes and edges.
+</p>
+<p>
+  <form onsubmit="draw(); return false;">
+  <label for="nodeCount">Number of nodes:</label>
+  <input id="nodeCount" type="text" value="25" style="width: 50px;">
+  <input type="button" value="Go" onclick="draw()">
+</form>
+</p>
+<span id="message"></span>
+<div id="mynetwork"></div>
+
+</body>
+</html>
