mod_news_pro_gk4 modules slowdown server

Hi all,
My site is http://www.almodi.org

History:
Html
Joomla! 1.0
Joomla! 1.5
And now since 03.01.2013: Joomla! 2.5

Maybe you give some help?

At frontpage i use six mod_news_pro_gk4 modules - page loaded 6-12 seconds.
At other pages, i don't use this module and pages loaded near 3 seconds.
In Joomla! 1.5 i used five mod_news_pro_gk4 modules and frontpage loads near 3 seconds.

I use XCache for site.
Also, enabled plugins cache :
system cache
system gavickExtCache
system plg_gkcache

How speed up my frontpage?
I saw heavy load to MySQL after migration to Joomla! 2.5.

Please send contact with me via PM and provide me mail where I can send you our improved version of module which should be today available in download area.

Thanks.