At the bottom of page there is sql speed & page load speed.
Click refresh and you will see much faster load, due to browser cache, I guess.
But this lasts shortly, I guess only session wide. Even if page contence does not change meanwhile, which it does as soon as new image is added to db.
If I go and 'search' on that page, I guess cache is associated only for page itself instead with domain, so in search results thumb that has been just loaded in galery.jsp
gets loaded again.