Lightroom CC stuttering on iMac 27 inch Retina 5k Late 2015

Have you installed any of the following apps:

• Antivirus app
• Cleaning app
• Non Apple maintenance apps

If so, locate the uninstall instructions and immediately uninstall them as they are 100% unnecessary and many cases cause more problems than they solve!!!

If you have not installed any of these types of apps you have 90 days of free AppleCare telephone support and should be in touch with Apple. You can find out more about this by clicking http://www.apple.com/support/complimentary/

If the hardware proves to be okay and OS X is okay (which I suspect they are) then I would be in touch with Adobe, your complaints are with their apps and they can coach you best. Your machine should be extremely fast, your issues are likely due to something you installed or installed incorrectly.

soundoftheatom wrote:

Apart from Adobe Creative Cloud, Lightroom and Photoshop, the only other things I've installed are VLC, The Nik collection (plugins for PS and LR), chrome and my Wacom graphics tablet. That's it. Nothing else at all.

Is there a way I can test the performance of my iMac? Hard drive, memory, cpu etc? If it is a software problem, wouldn't it be affecting everyone running the same machine?

I am going to get in touch with Adobe and see what they suggest as well.

To test your hardware Using Apple Diagnostics - Apple Support. To answer your question, yes if the hardware (or OS X) was in some way faulty then yes this would affect other users of the machine. If you are saying you are just one user on this machine and you are the only one experiencing problems with the Adobe products you have installed then I'd say, yes get in touch with Adobe.

How big are your Lightroom catalogs? FWIW, I have heard several grumblings

over the latest Lightroom performance from users with large catalogs.

Have also heard grumblings that the latest Lightroom is general overall slower

than previous versions.

FWIW, this will give you some idea of customers experiences with the 2015 versions vs the 2014 versions.

https://forums.adobe.com/thread/1874889?tstart=0

FWIW, it's not your iMac.

This is quite troubling to me because I am considering a 27" iMac. (Already own iPods, iPad and a Mac Book Air). The only apps I am interested in running are Light Room CC and Photoshop CC. Currently I'm running these on a 2009 Model Lenovo, Windows 10 Pro, 8GB Ram, Vision Tek Graphics w/ 1GB Ram driving 4 monitors. My performance is flawless and quick using this ancient machine.

If I spend $3K + on this iMac and it behaves as described here, I will not be happy.

Is this an isolated incident or common?

Thx,

Marty

This experience is very unusual. Please remember, these forums are help forums. the best analogy I can think of is coming here is like going to a hospital to judge the overall health of a population. Obviously all it will do is scare you. Millions of PC switchers have successfully transitioned to Macs, including me about 10 years ago.

PS & LR are very popular apps that run very well for both pcs and Mac users.

Thank you. Already use several Apple products (Love) and wand to do so for the desktop. I like your analogy 🙂

Thx again....

mcrean wrote:

This is quite troubling to me because I am considering a 27" iMac. (Already own iPods, iPad and a Mac Book Air). The only apps I am interested in running are Light Room CC and Photoshop CC. Currently I'm running these on a 2009 Model Lenovo, Windows 10 Pro, 8GB Ram, Vision Tek Graphics w/ 1GB Ram driving 4 monitors. My performance is flawless and quick using this ancient machine.

If I spend $3K + on this iMac and it behaves as described here, I will not be happy.

Is this an isolated incident or common?

Thx,

Marty

FWIW, I am running the Lightroom and Photoshop CC on a late 2013 27" iMac with

OSX El Capitan and am not having any issues. There is an issue with the Adobe Bridge CC

app as far as being able to connect cameras and downloading. However, if your intent

is to use Lightroom, there is no real need for Bridge. Folks at Adobe don't seem to talk to each

other apparently since Lightroom connects to cameras but Bridge doesn't.

As I stated above though, generally speaking, the latest Lightroom is slower than previous

version(not just on Macs either), but not to the extent that the OP is having issues with.

Very helpful - thank you. Don't use Bridge, so no concern there. Thx again 🙂

Regret I can't help but you might get some help by posting your quandary here:

http://www.lightroomforums.net/

Regards John

Thank you John 🙂

Have you tried a total and complete removal of everything Adobe

and do a re-install? Use the Adobe uninstaller.

Also, something else to try. Create a new user on your iMac (don't remove your current), reboot,

and log in to the new user and see if the issue continues? Perhaps there is something

in your current user account that is creating some sort of conflict.

I'm late to this party, but I want to say that it doesn't appear that this problem (specifically, poor performance with current versions of Lightroom on iMac 5k) is at all unusual. There are many, many mentions on the web and the threads all follow the same path ending in a suggestion to post something on Adobe forums (if it's an Apple forum) or posting something on an Apple forum (if it's an Adobe forum). I personally was about to buy an iMac 5k then a member of my local club told me about his experience and frustration with getting any support from either company. (Apple support couldn't even offer anyone in their entire support group who had ever used Lightroom!). I'm certainly not forking over $2500 for a high end machine that can't run the software I use most.