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clivefromcape town

Q: New iMac very slow after upgrading to Yosemite...

I recently purchased a 21.5 inch iMac and had it specced up. I was very happy with it until last week when I upgraded it to Yosemite. It has slowed down significantly. When switching between programmes and selecting different actions, it appears to stop, then the "thinking wheel" appears, before carrying out the requested command. Sometimes as much as 10 seconds. For example: the simple act of hitting "reply" in mail, it takes as much a s10 seconds to open a reply mail. I videoed it several times. Very disappointed...

 

 

Specs

iMac (21.5-inch, Late 2013)

3.1 GHz Intel Core i7

16 GB 1600 MHz DDR3

NVIDIA GeForce GT 750M 1024 MB

 

just the process of copying and pasting the specs from About this Mac, took ages. Each line "thought" about it for several seconds before allowing me to select it.

iMac, OS X Mavericks (10.9.4), 3.1 GHz Intel Core i7, 16 GB DDR3

Posted on Oct 20, 2014 12:54 PM

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Q: New iMac very slow after upgrading to Yosemite...

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  • by pvgwesterlo,

    pvgwesterlo pvgwesterlo Oct 21, 2014 1:25 AM in response to clivefromcape town
    Level 1 (0 points)
    Oct 21, 2014 1:25 AM in response to clivefromcape town

    I have the same problem on my imac.

    On my ipad air i have to switch between wifi connections every few min. or he stops loading internet pages.

  • by RoyD1975,

    RoyD1975 RoyD1975 Oct 21, 2014 1:45 AM in response to pvgwesterlo
    Level 1 (0 points)
    Oct 21, 2014 1:45 AM in response to pvgwesterlo

    Similar problem here too (quite high spec 2011 iMac 27") ; takes longer to boot up and Safari is slower under Yosemite than Mavericks.I  have just installed Firefox and had a play around with it and it is much faster than safari ~ just couldn't get the appearance the way I liked so uninstalled. This morning I was using a five year old Compaq (averagely specced) and using Chrome it was much much faster than Safari is currently. I like Apple products (and just bought a new iPod classic for spare ) have, iPad etc but these 'upgrades' are like puling teeth for me. IOS 8 was useless on iPad 2 but improved slightly yesterday with IOS 8.1. I have little interest in technology as an end in itself, ( hifi and audio is my thing) just wanting it to work. I still can't send emails since Yosemite was installed last week as 'smtp servers are offline' ~ well, no they're not as email still works on iPad, android phones and compaq using the same servers.  This really irritates. I was so impressed with iPad 2 when I got it ~ it set itself up virtually and I was sold on Apple's ease of use but I don't get back the 3 hours I spent last Friday checking settings, deleting accounts, re-adding email  accounts and ultimately failing to fix it.


    Yesterday I went to a famous dept store here in the UK to get an iPad mini with retina display as our iPad 2 is 3 years old  but I left the store without buying it; just got sidetracked by looking at Samsung and believe it or not, Surface 3 program microsoft. Enough doubt in my mind after IOS7/8 and now Yosemite.


    I still think Apple's products are beautifully designed and aesthetically and ergonomically impressive, but the Yosemite experience is draining; everyone glad handing about how great it is and it patently isn't. The design changes in the mac mini (lower performance than 2012 model ) and iMac (5K screen notwithstanding, much more difficult to make internal changes)) looks like arrogance.


    Sorry for the negative rant but that's almost certainly me done

  • by jdugan,

    jdugan jdugan Jan 22, 2015 5:55 AM in response to clivefromcape town
    Level 1 (0 points)
    Jan 22, 2015 5:55 AM in response to clivefromcape town

    I had this problem with my 24" mid-2007 iMac. I solved it by buying 2 x 2GB RAM  and replacing the 2 x 1 GB RAM. Yosemite seems to use a lot of RAM, something like almost 2 GB, so this really helped me. I had tried all the fiddly changes in system prefs and it had not worked. Highly recommend checking to see if memory is the problem.

  • by dwb,

    dwb dwb Jan 22, 2015 6:30 AM in response to clivefromcape town
    Level 7 (24,275 points)
    Notebooks
    Jan 22, 2015 6:30 AM in response to clivefromcape town

    Your computer is more than capable of running Yosemite - on my late 2012 iMac with 16GB RAM I noticed no difference in speed. I recommend two things: 1) download Etrecheck and post the results here. It is quite possible you have some program or plugin that is causing the problem. 2) make sure all your software is up-to-date. An out dated program can have a massive negative effect on performance.