The usual first question:
Has LR ever worked better for you than it is now?
Second question, has something changed recently like an upgraded OS or a new camera?
I can only tell you that LR6 is quick and responsive on my 2013 cylinder MacPro running Yosemite.
I'm running LR from an SSD and my library is on another SSD, why the sluggish performance?
Third question ... exactly what actions in Lightroom are sluggish?
Please check the below link to optimize its performance:
Also try to change the Camera Raw Cache size:
- Choose Lightroom > Preferences (Mac OS) or Edit > Preferences (Windows).
Yes, it was faster, when I was still using LR5
Problems started with version 6
For your info, my machine has a geek bench result only 15% less than the 2013 Cylinder
And no, I have been using the same camera and lenses since the switch to LR6
My library is on an SSD with more than 200 free Gb, I have had RAW cache on 64 GB for some time now, still sluggish...
Slow actions include, but not limited to:
- convert to DNG (I import from sandisk DGHCII cards cat 3 280 mbs/sec on usb3 reader)
- preview on second screen (Eizo CG276)
- HDR fusion, especial when trying to to more than 3 fusions at the time (I use brackets of 7 exp) when I try to do more than 6 or 7 processes at the same time it goes unresponsive for a really long time, the longer I bothered to wait was 2 and a half hour for 20 fusions.
I general, everything from the development module i sluggish, it becomes super sluggish when i try to batch process 10 or 15 images at the same time, it reacts so slowly that it becomes difficult to choose the right adjustment....
The GPU is supposed to help in development, but I have tried with It activated and deactivated in preferences and it doesn't make much difference. (I know it's an old GPU)
What I don't understand is when I look at my cpu load in activity monitor LR6 uses very little of the available resources....
I don't have the same problem with logic audio or FCPX....