The problem you've mentioned might be the _initial_ creation of resized images, which could be done through a maintenance task, thus it won't slow down the system 'on the fly'.
The other possible problem is the EXIF module, especially pre v2.2. Your best try is to disable that.
Third: Random images. This one is really a problem with the number of pics. G2 should (and will!) use a much more efficient way to show off random images. (Till then, the only temp solution is to disable random pics sections if there is any)
Otherwise there is page level caching in Gallery2, which serves pages really quick:)
That's mostly likely no the number of pictures.
:)
Gallery.Site.hu - a dog photo gallery hosts ~700,000 photos on Gallery2.
The problem you've mentioned might be the _initial_ creation of resized images, which could be done through a maintenance task, thus it won't slow down the system 'on the fly'.
The other possible problem is the EXIF module, especially pre v2.2. Your best try is to disable that.
Third: Random images. This one is really a problem with the number of pics. G2 should (and will!) use a much more efficient way to show off random images. (Till then, the only temp solution is to disable random pics sections if there is any)
Otherwise there is page level caching in Gallery2, which serves pages really quick
Joe7