Digitized newspaper display issue

I'm with a museum and we recently had our microfilmed newspaper collection digitized by a company in Maryland.  When I received the files, I was disappointed to see that each page initially shows a very crisp and clear text display, along with ASCII characters but no photographs, followed several seconds later by the full digitized image, including photographs.  This file is about 400 megs and is of 100 pages.  If I load the uncompressed file, which is 1.2 gigs (also of 100 pages), the page displays much better.  Sometimes the full page loads instantly but most of the time the page loads in "chunks" of about 25% but it doesn't take long - less than one second.  Neither the digitization company nor I have the slightest idea why this behavior happens.  I can't see how it is an Adobe issue and I don't think it is a computer memory issue, either.  The computer I'm using has 8 gigs of memory but the computer at the museum has 12 gigs.  The files display the same on both computers.

The first file that I received, over a year ago, had issues with the image not fully loading and getting "stuck" such that I would have to go forward or back 6 to 8 pages to get the problem page to load.  That issue seems to have gone away but now I have this clear text/digital image display issue.

If anyone can explain why this occurs, I sure would appreciate it!  As it stands, it looks like the only way around the issue is to accept the uncompressed files.  If it makes any difference, these files have been processed with an OCR program so that they are keyword searchable.

Thanks!!

Jeff