Sure.. here's what I do when diagnosing slow site issues with the template.
1) first test the loading of the included-by-settings scripts that access external data by running check-fetch-times.php
if it returns data fast and shows no caching issues, then try:
2) load wxnewpage.php in your browser, if it's fast, then some script being included in your index.php page is likely the cause,
if it is also slow, then run check-fetch-times.php?show=structure and look for include/include_once/require/require_once for
scripts added.
Doing this, I found the following extra scripts added:
in header.php there is include ('wrnWarningv3.php'); and include_once("crtest.php");
in menubar.php there is include_once("ukextremes.php");
3) I'd try commenting out those extra scripts one at a time and see if the removing one causes the pages to speed up. If so, you've found your culprit.
Hope this helps...