Review of Adobe Lightroom 2
Sunday August 24, 2008
Wow! Its not often I get really excited about new software but...WOW! If you want a program to organize your photos, develop them, output print packages, create slideshows, and start your web presence with a great web-based photo show this is the software for you! Unlike Photoshop, which is created for powerful editing, Lightroom 2 is for developing your images. Lightroom 2 allows you high-precision control over the color, light, tonal ranges, and even vignetting of your images. And then it integrates with Photoshop in those cases where you need pixel-based editing (such as removing a power line).
Adobe Lightroom 2 review

Comments
Hi
I have heard V2 is very slow on all but the very highest and fastest spec machines.
Is this so?
Roy
I haven’t heard of any run speed issues yet. I am running an iMac and have had no problems with it.
I’m on a MacBook — 2.4 with 2 gig, and it is surprisingly sluggish. Slower than Photoshop CS3.
I’m adding another 2 gig RAM and if it’s still sluggish, I’ll spread the word that this is a dog.
I would check the rest of the settings on your machine then. My Mac is a 2.4 and has 2 Gig of Ram and runs Lightroom very quickly.
Still, I’d be interested in hearing if anyone else has also been having speed issues with Lightroom 2.
I am using Lightroom 2 on a 2.17 pc with 2GB, and it runs excellently – faster than the 1.4 version. I run very large catalogs (20,000-50,000 photos) and I am very pleased with the newest version, especially the improved support for external drives.
I use a MacPro with 5GB ram and LR 2.0 is slower than 1.4 for me. It isn’t terribly slow but it does get hung up when scrolling through images and shifting from library to develop mode.
Could this be a function of the size of one’s catalog?
The speed is a minor nuisance to me, outweighed by the advantages of 2.0, but I would love to figure out why it is slower for me but not for others.
Thanks.