Slow loading Finder in Mavericks?

Same problem here. One option that was proposed would be to go to the terminal and run the command:

sudo defaults write com.apple.Finder NSAppSleepDisabled -bool YES

It's a logical solution, since it clearly is the AppNap causing the issue. I tested the command out on my new MBP running OS X Mavericks and I'm no longer having 30 second wait times for large libraries to load. It mostly fixed the problem. However, the finder is still not as zippy as my old MBP pre-Mavericks--this is especially displeasing b/c I would normally presume an upgrade to a SSD would speed things up...until someone got the bright marketing idea...AppNap. Yea, sure it sounds good, but when the app naps every 3 minutes, it's a real boon to productivity, especially when your workflow requires finder access every few minutes.

New Fall 2013 15" MBP Retina 16gb RAM; 2.6 GHz Intel i7, 1TB SSD - OS X Mavericks - slow finder

Old Fall 2010 15" MBP 8gb RAM; ?? GHz Intel i5, 500gb - OS X Mavericks - slow finder (was fast pre-Mavericks; clean install)

Summer 2013 iMac 16gb RAM; Intel i7; 1TB, OS X Mountain Lion - fast finder

Fall 2010 iMac 8gb RAM, Intel i5, 1TB, OS X Mountain Lion - fast finder

Summer 2012 Macbook Air - Mountain Lion - fast finder

I have spent 3 days trying to solve this problem across nearly a dozen Macs....problem is NOT your hardware, problem is a bug in Mavericks. After being told by tech support to do everything from resetting SMC to resetting NVRAM to forcing Spotlight to re-index, to turning "always" on in scrolling setting in settings as suggested here, trashing plist as suggested here, it turns out that nobody at Apple has responded to the THOUSANDS of posts relating to this problem yet is completely aware of the problem. The problem is a Mavericks glitch and they are well aware of the problem.

Here's a snippet from recent support chat...even the support tech is having the same issue.

"I am so sorry this is happening and do fully understand as my Finder is doing the same thing. I am hoping an update will be released soon that resolves this issue as I know first hand how annoying it can be!!"

Would be so nice if collectively tens of thousands of hours didn't have to be wasted by thousands of people experiencing a problem, trying to figure out a solution when their issue could be simply solved by a single post from Apple letting everyone know that they were aware of a particular issue and working on a fix. Communication with Apple is all too often 1-direction, users submit things but nowhere are users told by Apple "got it, we're aware of and working on this particular issue". Think of all the support expense, user frustration and wasted time this would save everyone!

I want my 3 days back.

You can apply to the Supreme Court.

Good luck

Pete

So since my first post I have tried the fix rubyreddevon suggested which tries to kill appnap for the finder through the terminal and it didn't do anything. Still waiting for the finder to populate everytime that I need to attach something or or save a document.

I'm just going to re download mountain lion from the app store under the puchases tab and re install that until this bug is fixed. This is the only fix that will actually solve the problem.

I suspect it may be the scripting in Default Folder X. Anyone else experiencing finder file load lag have that absolutely fantastic utility installed?

I just checked the Mac HD / Library / ScriptingAdditions folder. Found an old script BartenderHelper.osax. Removing that script seems to have sped things up a bit. Will wait to see if it has any lasting impact.

I just wanted add to the pile. I am having this problem and it is driving me crazy. SLLOOOWWWW getting an listing of folder contents to show.

I tried the terminal command: sudo defaults write com.apple.Finder NSAppSleepDisabled -bool YES

I turned off spotlight

I have Activity Monitor open and nothing is eating the CPU

MacBookPro 2.2 GHz i7 with 8G RAM

Mavericks 10.9

The funny thing is when I first installed Mavericks, I noticed that folder listing really popped. Now it is totally pooped.

HELP!!!! Do something Apple!!!

I have an 8 core, and finder is very slow while access all my drives. It is irritating having to wait. It slows down my work flow.

Fix Finder Slowness & High CPU Usage Issues in OS X Mavericks

http://osxdaily.com/2013/11/13/fix-finder-slow-high-cpu-use-mac-os-x/

You ROCK!

I went into terminal typed the command and finder just hauls *** now!

WHOO HOO!

I applied the information given by rogerfromparma and far so good.

Really appreciate the suggestion here — but this didn't work for me like it apparently worked for others.

One issue that I've noticed (let's see if this is similar to others' experiences): Whenever I try to rename a file, there's about a 5-second lag, after I hit Return, before the new title name is represented. Anyone else dealt with this?

I also noticed lagginess most when I move files, delete files, and empty the trash.

rogerfromparma you do rock!!!

Following the directions in the article you pointed to fixed it! According to my Activity Monitor my CPU was never busy, but this definitely fixed my problem.

Thank you.

Unfortunately, I tried trashing the finder prefs and relaunching. Thought it workd for a minute but this morning I had the same exact issue.