Will Lightboxify URLs slow down my website?

No, using Lightboxify URLs will not slow down your website. In fact, it can improve performance because the images will be loaded asynchronously. If you have many Lightboxify galleries in your content, it's recommended to put all source galleries on the same page to optimize loading times. This approach helps maintain a fast and responsive user experience while allowing for high-quality image displays.

For more information, you can check the Elevating Dynamic Galleries with Lightboxify URLs page.