I created a gallery that pops out when you click on it to showcase my portfolio. When you click on the individual images, they load pretty fast. The file sizes are small. However, when the images are in a modal window and when you navigate through the images using the prev/next buttons, most of the time, the loader spins forever and the image doesn't load. A few times it loads the image using prev/next buttons. Could someone please help me out and let me know what's going on?

Here is a link to my site:

My Website 

Thank you so much!!