Something

--- html/includes/xarVar.php    ff2400a521003344046bbaf6bdf1c0a4f8b4a826
+++ html/includes/xarVar.php    34fe79bc9b396a0a759c5a19483d706fb00e96cc
@@ -628,7 +628,7 @@
             if (!$result) return;
             break;
         case 'moduservar':
-            $result =& $dbconn->Execute($query,$bindvars);
+            $result =& $dbconn->CacheExecute(60*5,$query,$bindvars);
             if (!$result) return;
             break;
         }
@@ -641,8 +641,10 @@
         // If there is no such thing, return the global setting.
         if ($result->EOF) {
             $result->Close();
-            // return global setting
-            return xarModGetVar($modName, $name);
+            // cache the user setting using the global setting and return it
+            $value = xarModGetVar($modName, $name);
+            xarVarSetCached($cacheCollection, $cacheName, $value);
+            return $value;
         }
     }