I have set up joomla 1.5.11 in IIS 6.0. I have also used multi site component in my site.

The server machine configuration is :
1)Processor - 2.8 Ghz
2) RAM - 768Mb


Please help me how to make my site faster? . The web site is too slow to open or navigate one page to another page.
1) kalosfinancial.com
2)www.kalosmanagement.com

This is very urgent...If the server RAM configuration make higher then the site will be faster? Please give any suggestion to make web site faster.

Thanks in advance

Maybe you can enable the Joomla cache functionalities.

JMS does not add a lot overhead to dispaly the correct websites.
All the stuf are computed when creating and saving the slave site from the back-end.
So if this is slow, you must search the reason somewhere else.

One of the reason is that now your server have perhaps more hit to manage in the same time.
You must consider moreless the sum of all the websites traffic.