I'd installed zpbase and observe that every page is loading very long (aprox. 2-8second).
Anyone know what could be the reason of that?

you can check it -> http://gallery.may.net.pl

The theme is creating the custom image sizes on the fly. Once these are created your site speed is just fine. On pages that seem slow, the images probably have not been created yet. You can use the cache plugin to pre-create the images if you like, but it is not neccessary, as the site is browsed they are created in the cache.

It's seems like it didn't work for me. I cashed all photos and still this same.
When I used Basic template time was really shorter.

Hi Myamar,

compared the loading times of your site with my site which is also zpbase.
Firebug (Network tab) showed me a loading time of 8,4 sec for the homepage.
Mine with "Smooth div scroll" enabled at the homepage is 4,2 sec.

What makes me wondering:
It is just the index page which loads slow.
Do you have done some modifications with the code - i have noticed that there is some code for adsense.

yes, I only add adsense code - not other modification.
I commented adsense code so now is without any modification

The site feels generally a bit slow for me but the index is really by far slowest. While external code like adsense can cause this if its server hangs it is rather unlikely.

I see you have the static_html_cache enabled but normally the source code should note that it served it. This is not the case here. Please take a look at the plugin's options if the expiration option really is set.

"Please take a look at the plugin's options if the expiration option really is set."
Where I can find it? You mean expired date in static_html_cache plugin? i'v got it empty so should take default time (24h)

Yes, I mean that expired date. If you have the default values as indicated in the comment it should actually work.

Please take a look at either the /cache_html folder on your webspace where you installed Zenphoto and also review your error logs. Maybe the files are not created for some reason.

Especially with the plugin enabled the site should not be that slow.

I'd checked cache_html - there was some files. I delete it and observe if zen make new one - it did new one. So should it work correctly.

It should. I very well might be just that your server is slow for some reason. If you say another theme is faster hopefully gjr will have any idea.