diff --git a/markdown.php b/markdown.php
index 6f50985..c69724a 100644
--- a/markdown.php
+++ b/markdown.php
@@ -20,11 +20,37 @@ class markdown
   public function html ($mark)
   {
     $res = "";
-    $search = array ();
-    $replace = array ();
-
     $mark = htmlentities ($mark, ENT_QUOTES);
 
+    // Here are the regexp on multilines
+    $search = array ();
+    $replace = array ();
+    // Titles with underline (SeText)
+    // Titre1
+    // ======
+    $search[] = "/^(.+)\\n==+$\\n/Um";
+    $replace[] = "\n<h1>\\1</h1>\n";
+    // Titre2
+    // ------
+    $search[] = "/^(.+)\\n--+$\\n/Um";
+    $replace[] = "\n<h2>\\1</h2>\n";
+
+    $mark = preg_replace ($search, $replace, $mark);
+
+
+    $res = $this->paragraph ($mark);
+
+    return $res;
+  }
+
+  /** Translate the Markdown paragraph in HTML
+      return the html */
+  private function paragraph ($mark)
+  {
+$timeStart = microtime (TRUE);
+    // Initialization of convertions
+    $search = array ();
+    $replace = array ();
     // SEPARATORS : *** --- ___ * * * - - - _ _ _
     // Must be placed before EMPHASIS
     $search[] = "/\\n^[*_-] ?[*_-] ?[*_-]$/Um";
@@ -75,31 +101,13 @@ class markdown
     // # Title1
     $search[] = "/\\n^# ([^#]+)(#*)$\\n/Um";
     $replace[] = "</p>\n<h1>\\1</h1>\n<p>";
-    // Titles with underline (SeText)
-    // Titre1
-    // ======
-    $search[] = "/\\n^(.+)\\n==+$\\n/Um";
-    $replace[] = "</p>\n<h1>\\1</h1>\n<p>";
-    // Titre2
-    // ------
-    $search[] = "/^(.+)\\n--+$\\n/Um";
-    $replace[] = "\n<h2>\\1</h2>\n";
-
     // End of line with double space : <br/>
     $search[] = "/(  )$/Um";               $replace[] = "<br/>";
 
     // End of line with continuous on second line : add blank
-//    $search[] = "/(.)\\n([A-Za-z0-9])/Um"; $replace[] = "\\1 \\2";
-    $res = preg_replace ($search, $replace, $mark);
-    $res = $this->paragraph ($res);
+    //    $search[] = "/(.)\\n([A-Za-z0-9])/Um"; $replace[] = "\\1 \\2";
 
-    return $res;
-  }
-
-  /** Translate the Markdown paragraph in HTML
-      return the html */
-  private function paragraph ($mark)
-  {
+    // Cleanning the markdown text
     $mark = str_replace ("\t", "    ", $mark);
     $mark = trim ($mark);
     if ($mark === "")
@@ -115,6 +123,7 @@ class markdown
     // All the HTML stack (with LI)
     $htmlStack = array ();
     $lines = explode ("\n", $mark);
+    $timeInit = microtime (TRUE) - $timeStart;
     foreach ($lines as $nb=>$line)
     {
       debugMKD ("DEBUT:$line");
@@ -253,19 +262,20 @@ class markdown
             $res .= str_repeat (" ", end ($indentStack))."</$oldType>";
             array_pop ($htmlStack);
           }
-          $type = "pre><code";
+          $typetmp = "pre><code";
           $htmlStack[] = "pre";
           $htmlStack[] = "code";
           array_push ($typeStack, "code");
         }
         else
         {
+          $typetmp = $type;
           $htmlStack[] = $type;
           array_push ($typeStack, $type);
         }
         array_push ($indentStack, $indent);
-        debugMKD (str_repeat (" ", $indent)."<$type>");
-        $res .= "\n".str_repeat (" ", $indent)."<$type>";
+        debugMKD (str_repeat (" ", $indent)."<$typetmp>");
+        $res .= "\n".str_repeat (" ", $indent)."<$typetmp>";
         if ($type === "ol" || $type === "ul")
         {
           debugMKD ("DEB2 : Adding li");
@@ -284,6 +294,14 @@ class markdown
         array_pop ($htmlStack);
       }
 
+      // If code, there is no emphasis, email, and other convertions 
+      if ($type !== "code")
+      {
+        $timetmp = microtime (TRUE);
+        $lineTxt = preg_replace ($search, $replace, $lineTxt);
+        $timeregex += (microtime (TRUE) - $timetmp);
+      }
+
       debugMKD ("$lineTxt");
       $res .= "$lineTxt\n";
     }
@@ -296,6 +314,9 @@ class markdown
       $res .= "</$type>\n";
     }
 
+    debugMKD ("TimeInit=".($timeInit*1000)."ms");
+    debugMKD ("TimeRegex=".($timeregex*1000)."ms");
+    debugMKD ("TimeAll=".((microtime (TRUE) - $timeStart)*1000)."ms");
     debugMKD ("-----------\n");
     return $res;
   }