How can I reduce Time to First Byte of the main page

I use Zen Cart v1.3.9f and I have problems with loading pages. Generally, Time to First Byte is between 3 and 5 seconds. What is Time to First Byte for yours sites made with Zen Cart?

Any suggestion to reduce the time?

The test result is here:

http://www.webpagetest.org/result/101108_B3RB/1/details/

Thank you.

Enable page parse time display
admin > config > loggong > display page parse time > true or 1

Post times and a link is preferable

Parse Time: 8.641 - Number of Queries: 280 - Query Time: 8.10033281332

aftre refresh, they are smaller ...

site: https://www.cdnet.ro

thanks, kobra

Parse Time: 3.382 - Number of Queries: 216 - Query Time: 2.74297522807
Parse Time: 3.130 - Number of Queries: 216 - Query Time: 2.70853936063

Query Time indicates that the server is not tuned for processing mysql robustly

Here are a couple from a demo site I have
Parse Time: 0.462 - Number of Queries: 878 - Query Time: 0.156188109985
Parse Time: 0.356 - Number of Queries: 665 - Query Time: 0.110640153671

Thank you very much.

If you have any suggestions I can do ... Thank you in advance.

If you have any suggestions I can do ...
Contact your host with the issue
If they can not correct. look for another host