Thank you for the replies.
I am using Vegas 12 Pro. Yes the 32 bit version really struggled with large jpg’s. The 64 bit version does much better. Final viewing device would be vimeo. Yes, I could reduce the size of the jpgs but I wouldn’t be able to crop/pan and still be HD.
Regarding the import process, I am selecting all the images from the media pool and dragging them all simultaneously onto the time line. Each image has a length of .02 for 1 frame at 60 fps. I am not sure this qualifies as importing as a image sequence. I will have to look into that.
I import that veg file into another project so there is just one file and not 700-900 individual images.