Lightroom CC brush hyper slow

[Victor Wolansky]

Just installed the new Lightroom CC and OMG the brush is HYPER slow...  like almost unusable with the GPU enabled. Like 20 times slower, no kidding. And my machine is pretty fast and the GPU pass and is compatible and pretty fast with anything else..  Slow like I do not see the results until I release the pen....  Same Machine, same photo LR 5.7 works perfectly fine.

Lightroom version:  CC 2015 [1014445]

License: Creative Cloud

Operating system: Windows 8.1 Business Edition

Version: 6.3 [9600]

Application architecture: x64

System architecture: x64

Logical processor count: 12

Processor speed: 3.2 GHz

Built-in memory: 32690.8 MB

Real memory available to Lightroom: 32690.8 MB

Real memory used by Lightroom: 4882.5 MB (14.9%)

Virtual memory used by Lightroom: 5063.0 MB

Memory cache size: 0.0 MB

Maximum thread count used by Camera Raw: 6

Camera Raw SIMD optimization: SSE2,AVX

System DPI setting: 96 DPI

Desktop composition enabled: Yes

Displays: 1) 1920x1080

Input types: Multitouch: Yes, Integrated touch: No, Integrated pen: Yes, External touch: No, External pen: Yes, Keyboard: No

Graphics Processor Info:

GeForce GTX 680M/PCIe/SSE2

Check OpenGL support: Passed

Vendor: NVIDIA Corporation

Version: 3.3.0

Renderer: GeForce GTX 680M/PCIe/SSE2

LanguageVersion: 3.30 NVIDIA via Cg compiler

[dj_paige]

am also having this problem. I have updated my operating system, my graphics card drivers, my software for my Wacom tablet, and my Lightroom.

You really need to get a faster CPU to have any effect on this problem. These other steps won't speed anything up because it is not a bug.

Where is Adobe? Well, I don't work for them and I don't speak for them, but my opinion is that the non-destructive editing technology they have invented and used in Lightroom works really really well on everything EXCEPT lots of brushing and/or lots of spot healing on a single photo, where this technology demands more than the hardware (specifically the CPU) can deliver.

[Victor Wolansky]

The difference is that in LR 5.7.1 you can have lots of healing brushes, adjustment brushes, etc etc, and delivers much better than the latest version.

And I'm using an HP Z840 with 40 cores and 256 GB or RAM and a Quadro M6000. You can't beat that machine today, still LR CC2015 is slower than LR 5.7.1 when GPU is ON. Wasn't the purpose of have GPU support make it faster?

It has gotten better in the last few versions. But what is infuriating is the total ignoring us from part of Adobe.

[winterstephan]

By me the same i use a i7 4960x @ 4.6ghz singelcore speed a bunch of memory 64gb and a super fast disk subsystem. So that cant be the reason...

The reason is the code or the compiler, which isnt opzimized and thats the work for what we pay for a new version or the subscription. And in realty adobe does only cosmetics.. The same nightmare is that the database isn't multi user capable... User asking here fore years... What is adobe doing? They spent LR only this cloud shit...

[attilab86709611]

I have the same issue, the brush works extremly slow with gpu acceleration on. And the interesting part: When i use the brush with GPU ACC. OFF the cpu gets around 50% useage. When i use the brush GPU ACC. ON the cpu gets 99% useage.

[Ben CD]

I just got CC instead of using 5. Love the dehaze and gradient brushes but using brushes and spot removal is slow like you said. I have an i7 5820k, gtx 980ti, 16gb ddr4, and an SSD. I shouldn't be having these issues. 

[Victor Wolansky]

It is just bad optimization of resources. I do the same with Capture One and is many times faster, on the same machine.

[Alex Petrenko]

Can we have near each feature which is terribly slow in Lightroom (like adjustment brush, for which is easier to go to Photoshop, adjust there and come back) [Abuse removed by moderator] and they are not supposed to sleep well as we don't sleep, waiting for even tiny adjustments to apply for seconds.

[TopAdobeFan]

Is this brush issue still not resolved? It's almost 1.5 years after the feature was first released.

LR is just painfully slow when I use brushes on my iMac 5k late 2015.

[michaelh50643262]

4.5GHz CPU, 32GB RAM, Radeon R9 390 GPU, SSD, and Lightroom still sucks.  I'm just waiting for some of the other solutions (Macphun, OnOne, etc.) to mature then I'll ditch Adobe.  It's just painful to use now.

[random_tangent]

To anyone still struggling with this issue, I found a fix which improved matters a great deal for me. My machine has 16gb ram and my CPU is a haswell 4770K, so no slouch. My GPU is a 780Ti heavily overclocked. Not brand new, but not ancient either. My use of adjustment brushes varies. For wedding work I actually tend to use them sparingly, mainly because of time-constraints. But for my own personal photography I use them a lot. Fired up LR this evening to do some work on some landscape shots from a recent holiday and noticed appalling slow down on one particular image with a very detailed mask. In this particular case I'm masking along the horizon and having to go round things like lamp-posts etc, so I'm working at a high level of zoom with a small brush. About a third of the way along the shot, LR just became unusably slow. As has been described here, a 10-20 second delay from touching pen to tablet and seeing an effect on-screen, coupled with lock-ups and very high CPU utilisation. This is maddening, particularly because i can be holding down space to click to zoom out, but if i let go of the space button too early, the click registers after the tool-mode has reverted to brush and i screw up my mask.

Anyway, what helped matters immensely for me was turning the automatic lens correction filters off - CA and distortion. I read elsewhere that turning off NR and sharpening can also help, so I did this too, but didn't notice any difference. Given LR edits images in a non-destructive way - i.e. stores the changes and renders the develop image by applying them to the stored image in real-time - I suppose it makes sense that something like the distortion correction, which is an image-wide spatial transformation, would slow the adjustment brush down. It is presumably re-applying that transformation constantly to figure out which pixels are actually under your brush. In any case, this fix helped matters for me. For completeness I'm only on a 1440p monitor, so I don't use the GPU accel anyway. But again, I reckon leaving it off during masking, but turning it back on for image-wide edits later, might be an optimal solution.

My intention is to only turn the lens correction stuff back on after i've finished making changes to the mask. It's a slightly annoying work-flow quirk, but at least i can mask again!

[TwistedRealm]

I gave up using Lightroom for any brush editing 2 years ago.
It quickly becomes slow to respond, eventually grinding to an unacceptable halt. So, I just don't bother any more.

Adobe are more interested in developing "ipad and iphone and tablet and android" features than actually making this a "program" that professionals use on they primary systems.

I do all pixel edits in Photoshop, which never slows down, not even for 13GB gigapixel PSB's that I regularly work on.

So it goes to show, PS can handle files no problems, and LR is just a pi55 poor, sad, badly coded and pathetically supported editor.
Not fit for purpose. And what is worse, Adobe know this.

I pray for a true 64-bit version, which they would have to re-do completely. But maybe it would get rid of some of these performance issues.

My tip: Avoid any non-slider work in LR "if you have plenty of disk space", make all your slider edits, export as tiff and fix pixels in PS.
You also get the added double-processing latitude, and save yourself an eternity wating for files to update after each brush addition.
Having done this habitually for about 2 years now, even editing 500,000 pixel images with LR as part of the workflow is do-able.  Just don't expect to edit pixels (or brush in edits) in LR.

I will also add that by exporting TIFF's with the LR edits fixed in, you get a master file with LR edits, so if your LR does go pomf, you still have files to go back to. And by "pomf" I don't mean you have no backups or anything like that, I mean, any eventuality, even file redundency in 20 years time. After all, you can't guarantee that Adobe will let you access your files with LR data in the future! Well not unless you cough up.....so it is always good practice to have master files that are rasterized and "platformless" imo.

Now come on Adobe...........
Fix the silly-slow 4k interface speeds!
Fix the crazy slowness build-up that makes us constantly have to restart the program.
Fix the brush tools, to the performance level PS gives... they are only mask layers for god sake, and your competitors can manage it!

And maybe, fix the interface for 4k (and larger) too, your current implementation is half-assed at best. Some bits are usable, some are so blown-up in 4k that it makes having 4k pointless.

[Tejpal Singh]

i have also same problem. my GPU not supporting with adjustment brush tool. rubbish software

[BrooksRehab]

I am glad I found this thread. I just bought a 2017 MacBook Pro 3.1GHZ with 16GB of RAM. I am having quite a bit of slowness with the spot removal and brush tools on the BRAND NEW Lightroom Classic CC desktop version.

I know it's not my computer, I have plenty of headroom of RAM when I view activity monitor.

[johnc42378774]

Anything new here? 5K iMac, 32BG memory, bush lag is horrible in LR Classic CC.

John Caldwell

[chuckwa]

I have the same sloooooow or NO adjustment response, as the video here shows: Lightroom slow adj brush - YouTube

I've been using LR and PS in a producion setting for many years and this latest iteration of LR has killed my adjustment brush speed.

The referenced video shows me doing an operation that I do MULTIPLE times a day: knocking out a white background.

I know exactly how the brush responds and now it is unusable.

BUT, I'm screwed in that I can't revert because the catalogs are UPGRADED.

And, yes, there are ways to do the same thing in PS, but they are SLOW and not as good as LR for this particular purpose.

Keep in mind that I am in a PRODUCTION environment and every minute counts, and every 'just do it this way' is a change in procedures, training, management, etc.

And, while I'm at it, what the F%%^* is Adobe thinking in releasing PS with a non-preview of font size changes!?

Sheesh!

[dj_paige]

Your catalogs from previous versions of LR are still on your hard disk and can be used in the earlier versions of LR. Upgrading a catalog never changes or removes the original catalog.

[naldeau49]

the adjustment brushes we're never speedy but seems like i'm experiencing much worse lag than before LR update to 7.2. on a iMac OS10.12.6 with 32 gigs of ram and no other apps running the lag is so bad it's almost not useable, sometimes 10 seconds between brush strokes update, really slow. tried changing the "use preview instead of original" setting under performance pref settings, tried purging cache and increasing to 50 gigs, makes no difference. wonder what's up. adobe suggestions?