I'm still experiencing some really slow performance with RC2 (continued from 4.1 and RC1) which was not apparent with 3.6.
Simple things. Cropping an image takes a lot longer than it should.
Applying changes with the adjustment brush lag behind the brush strokes.
It takes awhile for the change from the healing brush to show up.
Simply moving from one image to the next takes longer than it used to.
All of the above is while in Develop mode. In Library mode things are acceptably quick.
All of this is on a Core-i7 with 8G of memory while editing Canon 5DII and 5DIII images. (performance under LR3.6 is acceptable for all of the above - this is a change in LR4)
I agree - LR4 is much slower in Develop mode. I have a 2010 MacPro 6 Cores - 12Gb RAM and SSD.
Brushes are slow to show changes. The adjustment sliders do not slide - Sticky Sliders - it takes 10 secs for the slider to move and it is a guess where it will end up.
This is not worth the upgrade to have the develop adjustments so slow.
For me it was pretty much a "must have" since I'm shooting the Canon 5D Mark III. I did the DNG thing at first ... but converting an entire session to DNG before importing adds a lot of time to the process all by itself. As slow as LR4 is running though ... I'm not sure how far ahead I am in the end.
Do we really need another "Lr 4 is slow" thread?
Do we really need Lightroom to be this unresponsive? As inconveniences go, I think an extra thread pales in comparison.
I have the dreaded slowness on one of my two very similarly configured workstations. They have exactly the same software installed, but the slow machine has a NVidia video card while the OK one has ATI. So I've just ordered a new ATI card and keep my fingers crossed.
I've done everything in the "Optimize Lightroom"-KB, but this is beyond that. There is something wrong here. Not saying it's Lightroom's fault, it could be that it exposes bugs elsewhere.
Yes, I thought of that, it would be a quick confirmation. But right now I'm in the middle of a tidal wave of deadlines and I'm happy as long as the work machine performs OK.
The NVidia machine is my home system so I have more time to fiddle with that. I've previously had my share of driver problems with that card in Photoshop as well, so I've wanted to change it for some time anyway. And we did see, right after the Photoshop CS4 release, performance problems that were very similar to what we now see in Lightroom. Those turned out to be video driver related in almost every case (although some were AV).
I have to say that even on the "good" machine Lightroom is not nearly as snappy as Photoshop. But it's fast enough to remain interactive. The other is close to useless. RC2 only made it worse, if anything.
In any case there's no question in my mind that there's something odd going on here. This is not a generic "computer performance" problem - it's not merely "slow", something's broken.
Had to dig deep to find this thread after nearly a week, but I just wanted to report that the ATI card arrived, and...
...things are very much improved! So there is definitely something there. From one to two second slider delay, down to basically keeping up with the cursor. And the screen redraw is right there; that also took a couple of seconds with the old NVidia card.
True, the sliders are still a little bit choppy, but the main thing is that I can see what I'm doing, more or less in real-time, as I work. That's good enough for now.
The card itself is an ordinary HD 6670, nothing fancy. I installed the 11.7 driver, which is not the latest, but unanimously praised as being completely trouble-free over in the Photoshop forum. I'll update to the latest version later. The old card was a NVidia 9400GT.
I did run a Windows update just prior to changing the card, and there was some sort of .NET update there. So I'm not saying I have "proved" it's the video card. But it might be something to try for the desperate.
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