Experiencing performance related issues in Lightroom 4.x

I have a Mac Pro eight-core and find it way to slow also.

I'm also experiencing a sluggish interface. I'm using a 2010 6-core 3.33GHz Mac Pro with 24GB of ram and a 240GB SSD. LR4 is currently using about 3GB RAM. Slider movements take 1-2 seconds to show up on the 12MP Nikon D3s RAW preview in the Develope module. Even more curious, moving files within LR is extremely slow even when I'm not in the folder sending/receiving the files which would require a screen redraw for each move... but it acts that way... About one file per second moves between source and destination. 

I just did fresh install of LR4 and LR3.6. I created two entirely new catalogs for each but importing the same 300 RAW images. LR4 is a little faster than before, but it is still much more slugish than LR3.6 in side-by-side comparison.

I tried the route of virgin install after uninstalling the original LR4-over-Beta install, deleting all files and cache and  I restarted with a new, empty library.  I imported a few Canon RAW files and gave it a go - I see very little, if any, performance change.  I processed one of the same RAW files in 3.6 and it was very responsive with low latency.  Using similar edits, the export of the finished JPEG took about 16 secs in LR4, 8 in 3.6. 

I'm going back to 3.6 until Adobe comes up with a solution.  I do this as a hobby for fun and LR4 is so irritating right now that it ain't fun at all.

Dave

After using it a bit I have noticed that the initial switch from the library to develop is slow, but consequence switches are actually fairly normal. The develop module is still not as snappy as Lightroom 3.6 though. The brushes and sliders seem to work fairly fast for me. Would still like to see a speed improvement.

I ended up uninstalling LR4, I was unable to work with it it was so slow, tryed zooming and it toke about 4 seconds to update..............was so looking forward to upgrading.

Hi All. Count me as grumpy for how slow LR4 is. I have spent about 10 hours fiddling including doing a complete system restore. I will report fidnings but here are system specs:

i7 950 Quad core OC'd to 3.9Ghz - rock solid.

24Gb RAM using Mushkin Black OCd to 1800Mhz - rock solid

C: is RAID 0 on Intel Sata2 Controller, running two OCZ Vertex3 120Gb SSD

Scratch drive is mushkin Max Iops 240Gb SATA3 SSD on SATA3 controller

Photo directory is on 4Tb partition (two WD Caviar Black drives in RAID 0 on intel SATA2)

Three displays but LR running on two - powered by two MSI GTX 570 cards OCd by about 20% - rock solid - have SLI disabled

Both Lr3 and Lr4 repond much quicker when second display is turned off. Lr3 us easily usable with second display running - Lr4 is very sluggish.

I have uninstalled. Reinstalled. Backup recovery. Lr3 only. Lr4 only. Side by side. Sharing catalog. Seperate catalog. Virgin import to LR4 to make brand new catalog. Does not matter - almost identical performance problem with LR4 (compared to LR3) under all conditions. Here is where I left it:

I now have LR3.6 and LR4 in side-by-side installs with completely seperate libraries and referencing duplicate data on the same partition. Without a doubt, LR4 is much, much more slugish than Lr3. Here is the kicker: I created a 12Gb ram disk and copied one of my folders with RAW images in it. When reading these images, LR4 does move more quickly than when reading identical files off the RAID 0 photos drive. However, the improvement is nominal and remails, very obvioudly slugish. In comparision, LR3 reading the same files from the Ram disk is much faster - tiny bit of lag.

The problems cannot have anything to do with hardware limitations or file sizes. There is something about LR4 that is grinding down its responsiveness.

How could they not have noticed this?

Kirk

PS. Once an image is cached, LR4 much more responsive - still slower than Lr3, but usable.

I haven't done any scientific test regarding this, but I have a dual screen setup and disabling the second monitor makes a very big difference. With both screens being used by LR4 any change to the RAW settings gives me a beachball. I turned off the second one and it feels much more responsive. I'm working on a Mac Pro, Mac OS X 10.7. Of course, disabling the second screen is not the solution. I still want to use both

I have a medium-big catalog (about 60,000 photos) and it's impossible for me to reimport it: I use constantly virtual copies, and those will be lost (as far as I know) if I just reimport the original DNG/RAW. So that is not an option for me (and I'm sure for lot's of people)

Regards

After playing LR4 with speed improvement for the whole night. I find it is still smooth.

All of you can check with the video in order to compare with yours.

See description in the video for more information.

http://youtu.be/2vfK5iJ-kbw

I have had a call back from Adobe support and there would seem to be issues with settings imported from beta and previous versions.  There advice and it worked for me to to remove the LR4 beta version with windows software then reboot your machine.  Then in windows 7 go to c:users/pc/appdata/roaming/adobe and then drag the lightroom folder to the desktop.  Then start LR4 and create a new catalog.  DO NOT IMPORT OLD ONE.  This will create a virgin set up.  LR4 on my machine now performs as well as LR3 did.  Have not yet loaded a old catalog from LR3 so hoping that will be OK