So basically nothing to fix the VERYVERY uselessly slow performance.....I don't have a performance problem. Sounds like a configuration issue if you have a PC.
I have a PC (with plenty of RAM, etc.) and maybe someone can answer my problem about loading photos into Lightroom. Once I import photos from my harddrive into LR, before I go into the Develop module, I wait for all the photos to "load", by waiting for the 3 tiny dots to disappear from each photo, indicating the photo is loaded. The problem is, only the photos that are displayed on the screen actually "load", so I then have to scroll down to have the next line(s) of photos to show on the screen before they actually load. I have the thumbnails set to the smallest setting so more photos are on the screen at once in the Library module. Is there something I'm missing or I'm doing wrong. I would rather have all the photos load on their own and go do something useful, instead of having to scroll down every 30 seconds until my 1,000 photos or so are finished loading. The reason I make sure all the photos are loaded, meaning the 3 dots have disappeared, is so that in the Develop module it doesn't take forever for a single photo to become ready for adjustments.
I'd suggest organizing your photos into folders by date - this way the computer does not immediately try to load thousands of photos each time you open LR. Even better, organize your photos into folders by by month/year and then by date plus brief description of the shoot - I find this very helpful. If it's an exceptionally large shoot, add another level of folders, ie, Ceremony, Couple & Family, Reception, etc. or 1st Quarter, 2nd Quarter, etc. For example:
W:\EOS 7D Master Backup\2012_08\2012_08_25 - Client Name's Wedding\Reception
By doing this I can pretty much get to anything quickly, despite having 40K+ photos tied to LR4 through network attached storage. My LR4 machine isn't a monster, either; it's a laptop with a dual-core Intel i5, 4GB RAM, SSD boot drive, and LR4.2 release candidate runs quite well. Once I'm ready to convert my RAWs, I save the output JPEG/TIFF's to a different drive and back them up to the master later (less I:O on the network drive means faster conversions).