Sierra 10.12.4 16E192b Running on iMac 5k (late 2015)

Discussion in 'macOS Sierra (10.12)' started by Fravin, Mar 21, 2017.

  1. Fravin macrumors regular

    Fravin

    Joined:
    Mar 8, 2017
    Location:
    Rio de Janeiro, Brazil
    #1
    Screen Shot 2017-03-21 at 18.10.03.png

    So I've decided to give it a try.

    I have a late 2015 M390 iMac. And I was having too much UI lags. Specially when switching Spaces. Mission control was working like a Slo-Mo movie.

    I'm happy to say that my iMac is now running like it should. Fast, hell fast!

    My complains about UI were gone. Mission Control now works fine.

    That's another little thing. BT was dropping connection constantly, just half a sec. And everything just connects again. Now, since the 6th deliver it's working fine, no more drops.


    You guys should try it. I'm in love with my iMac again!
     
  2. stooovie macrumors 6502a

    Joined:
    Nov 21, 2010
    #2
    Yes, it used to be even worse in El Capitan. Sierra really improved UI smoothness on 2015 5k iMac.
     
  3. lucco78 macrumors member

    Joined:
    Oct 3, 2008
    #3
    Really? My situation is the sime in 10.12.3 and in 10.12.4 beta... UI lags in Mission Control

    Your same iMac, but "only" 16GB of RAM!
     
  4. Fravin thread starter macrumors regular

    Fravin

    Joined:
    Mar 8, 2017
    Location:
    Rio de Janeiro, Brazil
    #4
    Well, now I'm having a Super Speed UI. As I never had before. Wich building are you running?
     
  5. lucco78 macrumors member

    Joined:
    Oct 3, 2008
    #5
    16E192b
     
  6. Fravin thread starter macrumors regular

    Fravin

    Joined:
    Mar 8, 2017
    Location:
    Rio de Janeiro, Brazil
    #6
    The same here.

    Are you still having laggy UI?
    --- Post Merged, Mar 23, 2017 ---
    I'd discovered that Mission Control lag is related to Adobe software. If you are using the GPU to help preview performance, then you will have Laggy Mission control.

    Try it. Call Mission Control without any Adobe softwares running. You can open the whole bunch of apps in your Mac that it will work as fast as it can. Open one Adobe software with GPU acceleration and there will be the lag.

    If you disable GPU preview in Adobe Software Mission Control works fine, too.
     
  7. lucco78 macrumors member

    Joined:
    Oct 3, 2008
    #7
    Thanks but... no Adobe apps, here!

    I use Pixelmator (that support GPU acceleration) but i can't disable that... Must i try to uninstall it?
     
  8. Fravin thread starter macrumors regular

    Fravin

    Joined:
    Mar 8, 2017
    Location:
    Rio de Janeiro, Brazil
    #8
    Does Mission Control hangs when Pixelmator are closed?
     
  9. lucco78 macrumors member

    Joined:
    Oct 3, 2008

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