diff --git a/src/umbraco.cms/businesslogic/web/Document.cs b/src/umbraco.cms/businesslogic/web/Document.cs
index 19ac20f270..406463c8d4 100644
--- a/src/umbraco.cms/businesslogic/web/Document.cs
+++ b/src/umbraco.cms/businesslogic/web/Document.cs
@@ -428,7 +428,28 @@ namespace umbraco.cms.businesslogic.web
             {
                 try
                 {
-                    new Document(dr.GetInt("nodeId")).XmlGenerate(xd);
+                    //create the document in optimized mode! 
+                    // (not sure why we wouldn't always do that ?!)
+
+                    new Document(true, dr.GetInt("nodeId"))
+                        .XmlGenerate(xd);
+
+                    //The benchmark results that I found based contructing the Document object with 'true' for optimized
+                    //mode, vs using the normal ctor. Clearly optimized mode is better!
+                    /*
+                     * The average page rendering time (after 10 iterations) for submitting /umbraco/dialogs/republish?xml=true when using 
+                     * optimized mode is
+                     * 
+                     * 0.060400555555556
+                     * 
+                     * The average page rendering time (after 10 iterations) for submitting /umbraco/dialogs/republish?xml=true when not
+                     * using optimized mode is
+                     * 
+                     * 0.107037777777778
+                     *                      
+                     * This means that by simply changing this to use optimized mode, it is a 45% improvement!
+                     * 
+                     */
                 }
                 catch (Exception ee)
                 {
diff --git a/src/umbraco.cms/businesslogic/web/DocumentType.cs b/src/umbraco.cms/businesslogic/web/DocumentType.cs
index 1ae942adca..d27f07cd93 100644
--- a/src/umbraco.cms/businesslogic/web/DocumentType.cs
+++ b/src/umbraco.cms/businesslogic/web/DocumentType.cs
@@ -345,7 +345,27 @@ namespace umbraco.cms.businesslogic.web
             var xd = new XmlDocument();
             try
             {
-                new Document(contentId).XmlGenerate(xd);
+                //create the document in optimized mode! 
+                // (not sure why we wouldn't always do that ?!)
+
+                new Document(true, contentId).XmlGenerate(xd);
+
+                //The benchmark results that I found based contructing the Document object with 'true' for optimized
+                //mode, vs using the normal ctor. Clearly optimized mode is better!
+                /*
+                 * The average page rendering time (after 10 iterations) for submitting /umbraco/dialogs/republish?xml=true when using 
+                 * optimized mode is
+                 * 
+                 * 0.060400555555556
+                 * 
+                 * The average page rendering time (after 10 iterations) for submitting /umbraco/dialogs/republish?xml=true when not
+                 * using optimized mode is
+                 * 
+                 * 0.107037777777778
+                 *                      
+                 * This means that by simply changing this to use optimized mode, it is a 45% improvement!
+                 * 
+                 */
             }
             catch (Exception ee)
             {