Lightroom 2015 CC is very slow on good PC

[hajduk1910]

SYSTEM SPECS:

• Ryzen 7 1700 3.0 GHZ
• 16GB Performance RAM in dual channel mode at 3000MHz
• Radeon RX 460 2GB(updated graphics drivers regularly and disable GPU acceleration in LR)
• SSD's + HDD
• Windows 10
• All drivers update

The program works very slowly in the "develop" mode, the image can read about 5-10 seconds and doesn't even help with 1: 1 previews. Additionally, the LR can jam for a few seconds and it has to restore it so that it can reasonably work. The longer a program is running, the slower it is.

To name just a few off the top of my head: I've tried running LR with GPU acceleration enabled or disabled, no difference (although GPU is confirmed to be supported). I have 20GB of cache, didn't seem to matter. LR Software, cache, are on a prosumer-grade SSD with plenty of extra space.I have seen tons of forum posts with users having the same issue as me despite many having similar to higher-spec PC's. My co-worker uses Lightroom 5 on an outdated PC, and it runs much better than it does on my modern system with modern software. I don't get it? Is there something I'm missing here?I really don't want to be another one of those people who talk smack and say that Adobe doesn't care to streamline & optimize due to lack of competition.

[F. McLion · Accepted solution]

You could have been hit by the fact that LR can have issues with more than 4 cores.

AFAIK, Adobe is aware of this and is working on an improvement. If you think about asking when this will be ... nobody knows.

There are ways to limit LR to 4 cores and that may improve your performance. I don't have the link on hand ... search this forum for it.

[dj_paige]

What size (in pixels, not inches or centimeters) is your monitor?

What size (in pixels, not megabytes) are your photos?

Are you doing lots of brushing and/or spot healing on photos?

[hajduk1910]

F.McLion thanks.

It's good to know that program is useless and at time of multihreading ADOBE still cannot use it in favor of user

Monitor: Eizo resolution:1920:1200

Size photo: 6000:4000

I use brushing and "or spot healing on photos"  i don't know this?

[dj_paige]

Given your answers, I think McLion is on the right track.

[hajduk1910]

Ehhhh thanks Adobe go work!