Very High Resolution PDFs for iPad

Hello,
A friend gave me a few PDF files created from very high resolution pictures to view on my iPad.
I loaded the PDF files on iBooks and so far so good. The problem is that when I swipe from a PDF page to another the image doesnt appear immidietly. It takes some time and the image is blur before it appears... After is fine but I want to remove this delay.
Does anyone knows any proper method to view high resolution PDF on iPad without delay when changing pages ? Or how what method or format to follow so to make them proper ?
Thanks in Advance.

What PDF reader are you using? Perhaps there is one out there that renders files better.
However, if the images are large then there is only so much that can be done. That delay is caused by the device processing the image. If you find a more efficient reader that may help. But you may also want to consider tweaking with those images, knocking them down just a bit and find that sweet spot where they're still of a good quality but not so large that they push the boundaries of what the device can handle.

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Thanks for your answer Petteri. That could be it even though in adobe reader
its fine in 'CONTINOUS'mode where u scroll down. But the bars show on the
side in horizontal view when you view in "SINGLE PAGE' and you want to
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