Adjustment Brush really, really slow in LR 3.3

Hi,
Don't know if anyone else has this problem, but when I use the adjustment brush with the photo in 1:1 ratio, my computer becomes really, really slow to respond. It becomes so slow, that I have to shut down LR 3.3 and restart. I'm using Windows 7, 64bit with 8GB of memory and my color card is an ATI HD5450 with 1GB of memory. I have my LR3.3 Camera Raw cashe settings at 75GB and on a different internal hard drive. I do not have this problem with LR2.7, which I'm glad I didn't remove. Anyone having this problem and found a solution? LR3.3 has really been a head ache for me. Lots of small, but annoying problems.
Thanks,
Dennis

It is funny what we each think of as "relatively old". Three years since I purchased the PC. It works fine for everything else that I use it for but the change between LR 2 and LR 3 has been quite marked in terms of rendering speed. I would say it is far more than a doubling. If it were only a "little bit" longer I wouldn't mind but this is distinctly annoying. The images are off a 5D MKII so 21MP.
As for keywording as the first one is available that makes an assumption that this issue is at import. Indeed I keyword in bulk at import via metadata preset and typing in keywords so I don't have to touch the images at all until they are ready to review.
Yes import rendering is slow but in this case I am working in develop mode. I had just gone through and done batch white balance adjustments. At that point my practice is to re-render the images before I do fine w/b adjustments and adjustments to exposure and black point, this means that there is less delay between opening an image and it "loading" ready to work on. However the huge delay that it causes is making me re-think this and possibly suffering the "loading" delay instead.
Most of the changes for LR2 to LR3 have been good (the notable exception being slideshow which is no longer useable). This however is not a good change.

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Hello
As far as I can see, both the video and audio editing world are already using non destructive editing and the files can be huge for video, so Photoshop will evolve in that direction also.
The operations in ACR are just mask overlays, which are not really that complex, even though the xmp are large, but in the most complex one I have been using, it is only 157kb.It is a vector layer, whose mathematical description is held in the xmp.
A comparable 8 bit mask as a channel in Photoshop would be 12mb in a 36mb uncompressed image.
It is also the reason why CS4 has so many types of adjustment layers and filter layers. That is exactly what a mask in ACR is acting as,in other words a local adjustment layer.
Many years ago there was a very good application called Picture Publisher, that recorded all pixel and layer operations as an editable text file, on a low res copy of the main image. The final compilation was rendered using the same text file on the full size image. The main problem with that the application was not accurate enough.It had a rounding error, so in certain circumstances 1000 pixels turned into 999 pixels. This as you could imagine would make some truly amazing final images, but not quite what was intended.
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everytime i try to use the adjustment brush it crashes lightroom? help
Message title was edited by: Brett N

Hey Brett,
Thank you for your quick respond
Well, there was a message after it crashed asking me if I want to report or send an email, which I did. Then it says that Adobe is an able to know the problem. Maybe this is the message you are talking about.
I have imported the same file from another source, and to a new catalog. same thing. In fact, I managed to apply both tools before it crashes, now every time I go to the same photo and just zoom in and out, it crashes.
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Hi,
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Ian,
Ian Lyons wrote:
Are you looking for help? If so then it would really useful if you provided some information on hardware, OS and what exactly are you doing when the system freezes. Also worth noting that applications very rarely (even badly coded apps) cause the hardware to crash. System crashes are more often than not due to bad device drivers or bad hardware that an application may expose.
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