I am running Lightroom 4.1 RC on a 2010 iMac 27" with 2.93 core i7, 16GB of RAM and a 512GB Crucial M4 SSD drive (where the Lightroom catalog resides). When I scroll through images in Library, I can move through images very fast, however, when I try to do the same in the Develop module, it becomes really, really sluggish. Probably about 5 seconds between images. I have 1:1 previews generated. Is there a workaround for this?
Develop doesn't use the previews so it has to render each time.
If the images are in the Camera Raw cache already, or if they are DNGs with fast-load-data embedded, it will be somewhat faster.
I agree this is totally unacceptable and this was never so slow in 3.6. Overall, this program needs a performance boost all around and soon please!
I totally agree with you. I'm running Lr 4.1 RC2 on Win7Ent64 with i7-2700k, 16GB RAM and catalog and previews on a SSD drive ant all the Develop module is relly really slow and sluggish. I have 1:1 previews generated. Very very bad performances!!! Adobe wakes up!