This conversation has been merged. Please reference the main conversation: Lightroom: Performance and optimization: LR is slow
Im so sorry, that i cant afford so much time for my postproduction of my shootings with the Lightroom 4 engine. Its a real horror working with that Release, waiting seconds to seconds that a picture is developed.....
Is there a way to go back to Rel.3 and convert the catalog from 4 to 3. Or must i do a deinstallation of Rel.4, new Installation of Rel. 3 and start with my old backup catalog 3 ?
Maybe there will be an update in near future or not. At this time Lightroom 3 is the right choice !