Apologies if this has come up already:
LRCC - with i7960 + GPU switched on (GTX970) = slow
LRCC with xeon x5650 overclocked and Same graphics card - much faster for eg graduated filer, but everything else is either as slow, or worse. THe most obvious is when most of the UI goes black for ~3 seconds before coming back. It appears to do this randomly. I can just be sitting there looking at an image (in develop mode) and it'll go black. The other thing I did at the same time as enable the graphics card processing was increased the cache size to 70gb as recommended in a thread the other day. Oh and occasionally the screen wont go black it'll just hang for several seconds.
The grad filter being faster just highlights how slow the rest of the program is. I know it's only been 5 or 6 years since we've been complaining about LR's speed, but frankly - this is utterly ludicrous.
Please follow the below steps.
Go to Performance Tab
Uncheck the GPU
then, Go to General tab
Uncheck the option "Show Add Photo to Screen"
Let us know if that helps.
Yes I did that, no its universally slow, without the stutters. The crazy thing us that the exact same system (albeit with a different motherboard). Worked extremely well with the gpu at one point. Whikst everyone else was complaining about how using the gpu was slowing everything down I was flying along. (Relatively - more wright brothers than x-wing). This was lr5.
Actually whilst I'm on a flow, what the hell has happened to white balance? it now takes 5-6 seconds to update between adjustments. 3-4 seconds with detail turned off.