FIRST TIME BYTE VERY SLOW - OPEN CART

Web Site Optimization Help Needed
1

Hi

IF somebody can help it will be really appreciate.

Our website www.dzignart.com was before yesterday on opencart 1.5.1
The First Byte from webpagetest was at 0.6sec and the total 3.3sec

Since I did the update from opencart 1.5.1 to 1.5.2.1 my first byte is 1.5sec, so very very long.
http://www.webpagetest.org/result/120504_HV_47J42/

We have change nothing since yesterday and
-our database is still with the same number of products (2500 products),
-I have just 4 vqmod that load,

  • use default theme with color modificaiton
    delete count of product per category
    delete log error
    our apache server is setup with deflate module (gzip compression : txt, image…)

Do you have any idea of what i need to change. Database optimisation, Cache???.. I am sure that my sql database need to have an optimisation

Upgrade from 1.5.1 to 1.5.2.1 should increase my speed, not become very slow. I am sure that it s not my hosting, because we have full dedicated servers and everything was fine yesterday morning

Thanks in advance

An

2

Hard to tell without more info but it could be just intermittent network issues. Is the speed faster for you now? Or have you tried downgrading back to 1.5.1 to see if that makes a difference?