I've done a little testing myself. I was almost thinking it's my server that makes things slow. I've installed Modx on another server (also based in my country) The test was as follows:
- A clean install of Modx 2.1.3
- Gallery 1.2.2
- The home template not changed, only added the call
[[!Gallery? &album=`test`]]
Also tried without the !
In the test album i have 394 photos width a resolution of 600x900 (around 200-250kb per picture). I've changed nothing to the configuration described above, so with the simple call to show the test album in Gallery I get 394 thumbnails of my images. The images are added trough the "batch upload" method
I've timed the performance and was shocked of what I got. It took exactly
2 MINUTES to load!! This can't be normal. On the same server we run a self-made album script (outside of any CMS) that loads the same 394 images. The thumbnails are even a little bigger. This only takes
4 seconds to load! What on earth is Gallery doing with these images when loading them up? I've tried everything, opened a lot of topic's and posts, but no one seems to know whats going on.
I'm wondering if you would try the same (an album with around 400 pictures and the same simple call), what your performance would be?