What's the best macOS for 2015 Macbook Pro?

Discussion in 'macOS' started by robert1998, May 20, 2019.

  1. robert1998 macrumors 6502

    robert1998

    Joined:
    May 10, 2017
    #1
    Hello guys! I'm running the latest macOS 10.14.5 but it is very slow on my early 13inch Macbook Pro 2015. What is the fastest macOS?
     
  2. badatusernames macrumors regular

    badatusernames

    Joined:
    Jul 1, 2018
    #2
    I have that same MacBook Pro it runs fine on the latest OS. You system might feel slow for a number of reasons (low memory, low disk space). What do you use your computer to do?
     
  3. chabig macrumors 603

    Joined:
    Sep 6, 2002
    #3
    It's not the OS that makes your computer slow. Your computer is probably slow because it contains a spinning mechanical hard drive. Replace that with an SSD and you'll find the difference night and day.
     
  4. MapleSyrup Suspended

    MapleSyrup

    Joined:
    May 20, 2019
    #4
    macOS Mojave of course.
    Just reinstall the entire OS.
     
  5. keysofanxiety macrumors G3

    keysofanxiety

    Joined:
    Nov 23, 2011
    #5
    They do have an SSD, it's a 2015 :)

    OP: try restarting with the option "reopen windows when logging back in" unchecked. Can you also confirm how much free disk space you have?
     
  6. Fishrrman macrumors P6

    Fishrrman

    Joined:
    Feb 20, 2009
    #6
    My 2015 MBPro is still doing fine on El Capitan, and because it does so well, I have no intentions of upgrading it for the foreseeable future.

    However, I keep a second partition with Low Sierra on it, and the MBPro boots and runs fine from that, too.
     
  7. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #7
    My 2012 rMBP is doing well with El Cap, I' not a fan of the newer versions.
     
  8. DeltaMac macrumors G3

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #8
    Absolutely, if you don't have enough free space, that can directly affect the performance of your MBPro.
    A 128 GB boot drive does NOT leave you with much space already, and really easy for a variety of reasons to fill to capacity. In my experience, and with a small SSD like you have, less than 10% free space will easily cause noticeable slow-downs, without a doubt.
     
  9. MapleSyrup Suspended

    MapleSyrup

    Joined:
    May 20, 2019
    #9
    It's unsupported.
    You can't run the latest Xcode nor many C++ GUIs
     
  10. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #10
    Doesn't bother me

    So what, I don't code.
     

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9 May 20, 2019