Why so big files in the OCRs from Acrobat X?

I used Acrobat 8 by many years. Now, I thought maybe was the time to upgrade, and I'm testing Acrobat X. My main use to Acrobat is to scan my own books (photocopy + ADF scan + PDF) and do an OCR scan (usually: exact copy) The reason of this is that I manage maybe 4 or 5.000 books and articles and in my work (history and genealogy) is useful to search the content directly.
With Acrobat 8, this was done one by one, with certain accuracy.
With Acrobat X, I try OCR and I noted three big differences:
1st: The OCR is far better than in the v.8. In the same document where I found after OCR, ie: 50 occurrences, Acrobat X OCR give me now: 150 occurrences to the same word. Nice!!
2nd: Now, I can do batch OCR. This mean that I can let OCR running a 10 documents list the whole night, or the whole day when I go to office, working one after the other... Nice!!
I thought I touch the sky... At least I'would OCR all my library...! and all this books downloaded from archive.org and similar ones...
But all this is nothing compared to:
3rd: The resultant size of the OCRed files are impossible to manage. A book of 82MB gone to 538MB... As minimum, files doubles the size. With Acrobat 8, maybe gone 10 o 20% up, but not more than double as with the new Acrobat X. I have still 400GB to do OCR... I can't skyrocket this to 1 or 2 TBs...
I tried: search, exact search and clear scan (no differences) I tried 600, 300 and 75dpi. Even 75dpi was bigger. And illegible, despite at 75dpi at 100%, at least it must appear clear in the screen.
Im not sure if I must do the upgrade to Acrobat X. Someone can help me? Someone could recommend a specific, commercial software, to do OCR in PDFs, tha don't fat the resultant documents in this way? I can't believe that only text added, can do this.
Thank you very much,
Martin

This is a tough one. One thing to look at is the client side
buffers and server side buffers. A live stream usually drops data
to "catch up" to streamtime - buffers size allocated so Im not sure
how a song can be playing from 15 min ago...
Are the users that connect up rebuffering alot?
When troubleshooting try to find the least common
denominator; see if accessing the stream on the same network is an
issue. If it's successful, keep moving further away to determine
what point the bottleneck lies in your network.

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