diff --git a/haxework/gui/TextView.hx b/haxework/gui/TextView.hx
index b0fb901..57194f8 100755
--- a/haxework/gui/TextView.hx
+++ b/haxework/gui/TextView.hx
@@ -28,6 +28,9 @@ class TextView extends SpriteView implements ITextView<Sprite, TextField> {
 
   private var textFormat:TextFormat;
 
+  private var _textWidth:Float;
+  private var _textHeight:Float;
+
   public function new() {
     super();
     layoutHAlign = HAlign.CENTER;
@@ -144,6 +147,22 @@ class TextView extends SpriteView implements ITextView<Sprite, TextField> {
     return _text;
   }
 
+  private function updateTextSize():Void {
+    //ToDo: canvas.getContext("2d").measureText very slow
+    #if js
+    var s = 1;
+    var t = currentText();
+    if (t != null) for (i in 0...t.length) {
+      if (t.charCodeAt(i) == 10) s++;
+    }
+    _textHeight = textFormat.size * s;
+    _textWidth = width;
+    #else
+    _textWidth = textField.textWidth;
+    _textHeight = textField.textHeight;
+    #end
+  }
+
   override public function update():Void {
     textField.embedFonts = fontEmbed;
     textField.defaultTextFormat = textFormat;
@@ -151,10 +170,11 @@ class TextView extends SpriteView implements ITextView<Sprite, TextField> {
     var t:String = currentText();
     if (t != null) textField.text = t;
     textField.setTextFormat(textFormat);
+    updateTextSize();
     if (contentSize && !Std.is(skin, ISize)) {
       #if html5
-      var h = textField.textHeight;
-      //var w = textField.textWidth;
+      var h = _textHeight;
+      //var w = _textWidth;
       //if (h > textFormat.size * 1.5) h = h / 2;
       textField.height = h;
       //textField.width = w;
@@ -185,9 +205,9 @@ class TextView extends SpriteView implements ITextView<Sprite, TextField> {
     //} else {
 
     textField.width = width;
-    textField.height = textField.textHeight * 1.185;
+    textField.height = _textHeight * 1.185;
 
-    //#if html5 textField.height = textField.textHeight; #end
+    //#if html5 textField.height = _textHeight; #end
       textField.x = switch (layoutHAlign) {
         case HAlign.NONE: 0;
         case HAlign.LEFT: paddings;
@@ -198,8 +218,8 @@ class TextView extends SpriteView implements ITextView<Sprite, TextField> {
       textField.y = switch (layoutVAlign) {
         case VAlign.NONE: 0;
         case VAlign.TOP: paddings;
-        case VAlign.MIDDLE: (height - textField.textHeight) / 2;
-        case VAlign.BOTTOM: height - textField.textHeight - paddings;
+        case VAlign.MIDDLE: (height - _textHeight) / 2;
+        case VAlign.BOTTOM: height - _textHeight - paddings;
         default: 0;
       }
     //}
diff --git a/haxework/gui/View.hx b/haxework/gui/View.hx
index 862bc6e..405b993 100755
--- a/haxework/gui/View.hx
+++ b/haxework/gui/View.hx
@@ -1,5 +1,6 @@
 package haxework.gui;
 
+import flash.errors.Error;
 import haxework.gui.IView.Content;
 import haxework.gui.skin.ISize;
 import haxework.gui.core.SizeType;
@@ -321,6 +322,7 @@ class Updater {
   }
 
   public function update(?_):Void {
+    var t = Date.now().getTime();
     while (invalidated.length > 0) {
       var v = null;
       try {
@@ -330,6 +332,8 @@ class Updater {
         L.e("Update", v + "", error);
       }
     }
+    t = Date.now().getTime() - t;
+    if (t > 10) trace("UPDATE(" + t + ")");
   }
 
 }
\ No newline at end of file