Lydia, that sounds like something that DocJohn will need to deal with, probably in the next day or two.

Lostime, are your "large" files within the size limits or could it be the automatic resizing function that's bogging down?

Maximum File Size per Picture 97.7 KB
Maximum Picture Dimensions 600 by 600 Pixels
Pictures will be automatically resized to fit within these constraints if possible. However, you may receive better results by doing it manually.