LV 8.2 Vs. LV 7.1 and large VI file size

Hi,
I upgraded a large SW developed in LV 7.1 to LV 8.2. After some error corrections I saw that a large Vi in LV 7.1 (a Vi template .vit) that was 18 MB, in LV8.2 was 2.6 MB !
The editing of this Vi is very very very slow, and it's unacceptable. When I save it I can have a coffee break !!
Also, to open the reference to this Vi it's necessary 35-40s but in LV 7.1 2 seconds were enough.
Finally I see also a reduction of the file dimension of some Vi that in LV 7.1 had a large file size (5-8 MB).
Some suggestion about this big-big problem ?
It's possible that LV 8.2 compress (like ZIP) large VI ?
Thanks and regards

The extreme difference in file size indicates that LabVIEW is able to "squeeze" your vi down much more than the typical %50 that ZLIB is capable of. LabVIEW 8.0 introduced compression of the vi. See this LAVA thread. If your VI contains items that are highly compressible, (BMPs, large strings of repeating text?) then the CPU must work more to "enflate" and "deflate" the file when loaded or saved (development environment slower). Your reported values lead me to beleive there is "SOMETHING" in your VI that could be improved.
The other solution is to improve the computer's effeciency; start by cleaning up the hard disk and optimizing it, then upgrade memory, then as a last resort upgrade the CPU. LV 8.2 takes more memory. If your physical RAM is not up to par and if your disk drive is full, you might be paging to disk alot and that would slow you down.
Now is the right time to use %^<%Y-%m-%dT%H:%M:%S%3uZ>T
If you don't hate time zones, you're not a real programmer.
"You are what you don't automate"
Inplaceness is synonymous with insidiousness

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