Just upgraded to LR 6 and I am noticing that my editing in the Develop Module is slower than LR 5. I saw that my GPU acceleration was turned on... I edited about 100 photos and the lag between clicking on a photo until it was ready for me to adjust sliders was about 1/5 to 2 seconds.
I disabled GPU acceleration and the average click-to-edit time went down to about .5 seconds... What gives?
I have an i5 PC with onboard Intel 4000 graphics.
I'm considering getting an Nvidia GT 740 if it would help but I don't just want to burn $100 when I don't have to.
Thanks for any help!
Before you disable GPU acceleration in the Lightroom Preferences > Performance dialog, please make sure the driver for your graphics card are fully up-to-date...(check with your system and/or GPU manufacturer) Often updating that can fix a problem.
For more assistance, see:
Unfortunately this regarded as "normal" at the moment, see here:
Hopefully they might do something about it, such as buffer adjacent images.
I have the same issues as you, although the sliders are indeed super smooth when GPU acceleration is on. The only thing that isn't is the adjustment brush: it's clunky as hell.
For now I've disabled GPU acceleration until things are tweaked: TBH I'd rather have less responsive sliders and faster loading times and an adjustment brush that works.
When the engineers have fixed things fully then I might turn it on and upgrade the card, but for now if I were you I wouldn't bother until things are sorted for all users.