Make use of Native YAML parser if available (big speed boost!!)

system/src/Grav/Common/File/CompiledFile.php

@@ -22,6 +22,9 @@ trait CompiledFile
      */
     public function content($var = null)
     {
+        // Set some options
+        $this->settings(['native' => true, 'compat' => true]);
+
         // If nothing has been loaded, attempt to get pre-compiled version of the file first.
         if ($var === null && $this->raw === null && $this->content === null) {
             $key = md5($this->filename);

system/src/Grav/Common/Page/Page.php

@@ -259,6 +259,8 @@ class Page
         if (!$this->header) {
             $file = $this->file();
             if ($file) {
+                // Set some options
+                $file->settings(['native' => true, 'compat' => true]);
                 try {
                     $this->raw_content = $file->markdown();
                     $this->frontmatter = $file->frontmatter();