Lightbox Image File Sizes

Hi,
I’m wondering if anyone knows how to get this plugin to use a custom defined (or even default) WordPress image size for the final files that are displayed in the lightbox?

All of the settings (width/heigh/max width/etc) only affect how the image DISPLAYS, using CSS or HTML. But the full-size image file is still served in the lightbox. Unfortunately, even cell-phones these days take ridiculously huge files (8-12MP+), which is WAY to large for standard display. These huge files end up making the galleries very sluggish in loading and cycling through, not to mention the server load.

I’ve added a custom maximum size image just for galleries (e.g., 1000px wide) in my functions.php. I just don’t know how best to tag the plugin to use this custom image size instead of the full-size original.

– Any ideas or workarounds people use??

THANKS!

https://ww.wp.xz.cn/plugins/lightbox-plus/