Hello,
I completely agree here. I’ve had this iMac here for a while now, and once 
everything loads up, it’s pretty fast, and it’s one from a couple years ago 
that only has 4 GB of RAM. One thing that could possibly be going on is 
Spotlight could be indexing everything in the background still for the first 
time, depending on how much stuff is on the drive.
Also, making sure all updates to OS X and all apps are up-to-date will also 
help.
Another thing that may also help, is running a Repair Permissions scan on the 
drive using Disc Utility.
Also, if Filevolt is turned on, which it is by default now after a new 
installation of Yosemite, then that could be the cause of the slowness and, 
after turning Filevolt off, it will work much better. I’ve seen stuff like this 
discussing Filevolt and system slowness at first before.
You can turn this off by going into the Security and Privacy pane of System 
Preferences, and going to the Filevolt tab and VO spacing on it. Once this 
loads, if you VO right, it will tell you whether Filevolt is on, and let you 
turn it off. It will say it is dimmed until you VO space on where it says 
“Click here to make changes.” Then, you put inn your password, and you can make 
the change.
Hope this helps,
Jeffrey

> On Jan 14, 2015, at 11:49 PM, Tim Kilburn <kilbu...@me.com> wrote:
> 
> Hi,
> 
> What are the specs on the iMac?  I’m guessing that it probably has a spinning 
> HD as opposed to the MBA’s Flash storage.  Flash storage has considerably 
> faster access than any spinning HD, especially if the spinning HD is only 
> 5400 RPM’s.  Depending on the model of the iMac, the default RAM could be 
> around 8 GB which should not exhibit choppy speech like you’ve mentioned.  I 
> use VO on some older iMacs when setting these machines up at my work, and 
> they are slower at starting, slower at logging in but once everything in the 
> background has finished doing its thing, VO works normally.  Make sure that 
> you have the checkbox unchecked to re-open windows/applications when logging 
> back in.  This box is visible when you go to logout.  Also, make sure you 
> don’t have any apps set to automatically open as this can slow down the 
> startup process as well.  There are enough processes going on in the 
> background as it is during startup and login that make it feel slow that 
> adding extra things simply prolong the wait.
> 
> HTH.
> 
> Later...
> 
> Tim Kilburn
> Fort McMurray, AB Canada
> 
>> On Jan 14, 2015, at 20:29, Donna Goodin <doniado...@me.com> wrote:
>> 
>> Hi all,
>> 
>> As some of you may remember, my employer has purchased an iMac for me.  I am 
>> sorry to say it, but I've been incredibly disappointed in the iMac.  I had 
>> expected it to perform better than my MBA, but the opposite seems to be the 
>> case.  It boots very slowly, and voiceover cuts in and out after the boot 
>> process for a couple of minutes.  the wireless connectivity also seems 
>> weaker than on my MBA.  It also seems more sluggish overall - apps take 
>> longer to open, documents and websites take longer to load.  Long and short, 
>> I'd never choose it over my MBA if it weren't my work computer.  I'm 
>> wondering if anyone else has observed similar behavior?  If so, any 
>> strategies for troubleshooting?  I'm thinking of adding more memory, in the 
>> hope that that will speed up the boot time and get rid of VO dragging.
>> Cheers,
>> Donna
>> 
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