diff --git a/index.html b/index.html
index b06fe92..3d19718 100644
--- a/index.html
+++ b/index.html
@@ -51,7 +51,7 @@
                         <button id="addNode" class="controlButton">Add Node</button>
                         <button id="sendPacket" class="controlButton">Send Packet</button>
                         <button id="resetTTLColors" class="controlButton">Reset TTL Colors</button>
-                        <button id="createRandomGraph" class="controlButton">Create Random Graph</button>
+                        <button id="createRandomGraph" class="controlButton">Create Random Network</button>
                     </div>
                     <div id="simToggles">
                         <input type="checkbox" id="showRanges" class="simToggle">
@@ -71,7 +71,13 @@
                 <div id="randomGraphModalContent">
                     <label for="randomGraphNodes">Number of Nodes</label>
                     <input type="number" id="randomGraphNodes" value="10" autocomplete="off">
-                    <button id="createRandomGraphConfirm" class="controlButton">Create Random Graph</button>
+                    <button id="createRandomGraphConfirm" class="controlButton">Create</button>
+                </div>
+            </div>
+            <div id="warningModal">
+                <div id="warningModalContent">
+                    <p id="warningModalMessage"></p>
+                    <button id="warningModalConfirm" class="controlButton" onclick="document.getElementById('warningModal').style.display = 'none';">OK</button>
                 </div>
             </div>
         </div>
diff --git a/script.js b/script.js
index 306d0fa..dce0b26 100644
--- a/script.js
+++ b/script.js
@@ -4,6 +4,7 @@ var DROP_PENALTY = 1.2;
 var TTL = 5;
 var MAX_OUTGOING_CONNECTIONS = 3;
 var MAX_INCOMING_CONNECTIONS = 3;
+var warningModalShown = false;
 
 function smoothColorTransition(color1, color2, min, max, current) {
     // Clamp current between min and max
@@ -396,10 +397,28 @@ function main() {
 }
 main();
 
+function onNodeAdd() {
+    var nodeLength = Object.keys(nodeTable).length;
+    if (nodeLength >= 200 && !warningModalShown) {
+        warningModalShown = true;
+        document.getElementById('warningModal').style.display = 'block';
+        document.getElementById('warningModalMessage').innerHTML = 'Large network detected; simulation speed will be reduced.';
+        document.getElementById('updateInterval').disabled = true;
+        document.getElementById('updateInterval').value = nodeLength*2;
+        UPDATE_INTERVAL = nodeLength*2;
+        document.getElementById('simSpeed').value = 1;
+        onEdgeEngine.setSimulationSpeed(1);
+    } else if (nodeLength >= 200 && warningModalShown) {
+        document.getElementById('updateInterval').value = nodeLength*2;
+        UPDATE_INTERVAL = nodeLength*2;
+    }
+}
+
 document.getElementById('addNode').addEventListener('click', function() {
     const nodeId = generateRealisticLabel();
     nodes.add({id: nodeId, label: nodeId});
     nodeTable[nodeId] = {'incoming': [], 'outgoing': [], 'packetCache': []};
+    onNodeAdd();
 });
 
 network.on('click', function(properties) {
@@ -410,6 +429,7 @@ network.on('click', function(properties) {
         const nodeId = generateRealisticLabel();
         nodes.add({id: nodeId, label: nodeId, x: properties.pointer.canvas.x, y: properties.pointer.canvas.y});
         nodeTable[nodeId] = {'incoming': [], 'outgoing': [], 'packetCache': []};
+        onNodeAdd();
     }
 });
 
@@ -423,6 +443,7 @@ network.on('doubleClick', function(properties) {
     const nodeId = generateRealisticLabel();
     nodes.add({id: nodeId, label: nodeId, x: properties.pointer.canvas.x, y: properties.pointer.canvas.y});
     nodeTable[nodeId] = {'incoming': [], 'outgoing': [], 'packetCache': []};
+    onNodeAdd();
 });
 
 document.getElementById('sendPacket').addEventListener('click', function() {
@@ -506,6 +527,7 @@ document.getElementById('createRandomGraphConfirm').addEventListener('click', fu
         const nodeId = generateRealisticLabel();
         nodes.add({id: nodeId, label: nodeId, x: Math.random() * 100, y: Math.random() * 100});
         nodeTable[nodeId] = {'incoming': [], 'outgoing': [], 'packetCache': []};
+        onNodeAdd();
         nodeCounter++;
         if (nodeCounter >= nodeCount) {
             console.log('Node count reached');
diff --git a/style.css b/style.css
index 1eb3509..e05c155 100644
--- a/style.css
+++ b/style.css
@@ -80,7 +80,7 @@ html, body {
     margin-bottom: 10px;
 }
 
-#randomGraphModal {
+#randomGraphModal, #warningModal {
     display: none;
     position: absolute;
     top: 0%;
@@ -93,6 +93,16 @@ html, body {
     height: 100%;
 }
 
+#warningModalContent {
+    padding: 20px;
+    background-color: #fff;
+    border: 1px solid #ffee00;
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+}
+
 #randomGraphModalContent {
     padding: 20px;
     background-color: #fff;