This week I purchased a new Acer computer (i5 processor, 64 bit, 4GB Ram).  It has increased importing speed by at least 500%.  

With my old computer (dual core pentium, 32 bit, 4 GB RAM), it was taking me 4 seconds per image.  With the new computer, it is close to 2 images per second.

Makes trail cam surveys a LOT better.