I'm suffering a bit with the new ACR 7.0 under CS6 being quite a bit slower than CS5 version on my system. Anybody know if there are performance tweaking steps unique to CS6? I've played with the usual suspects, but nothing seems to make a difference.
I started noticing slow conversions to Pshop, so much slower that a progress bar appears. Some quick testing showed that conversion time is accumulative depending on how many and what kind of adjustments are made. The new "2012" tone controls and the new CA removal tool seem to be the main "turtles".
For example, I took a batch of 10 raw files and fully loaded them with adjustments. White Balance, Exposure, contrast, clarity, sat, vibrance, tone (highlight recovery, shadow/fill, blacks), noise reduction, sharpening, lens correction, CA removal. Then I opened all 10 in ACR and saved as 8 bit tifs. CS5 did it in 48 seconds, CS6 took 75 seconds - 56% longer.
My other pain is in viewing and panning at 100%. I like to review raws by opening in ACR from Bridge, viewing 100% and panning around to check focus and sharpness. In CS5, getting to 100% view is almost instant, and panning is very responsive. Just a little "jerkiness". In CS6/ACR7, it takes 1 to 2 seconds to get to 100% view. Panning is much more jerky. Small pan movements are not bad, but larger pans often "freeze" for 2 to 3 seconds, then catch up.
My system in Win7 64bit, with an I5 quad processor and beacoup memory. Graphis card is an Nvidia 9500, which is listed as compatible by Adobe.