iMovie is running unbearably slow

Discussion in 'Mac Apps and Mac App Store' started by boomdog, Feb 8, 2015.

  1. boomdog macrumors regular

    boomdog

    Joined:
    Oct 3, 2013
    Location:
    The most Easterly point of the UK
    #1
    Hello all,

    I'm using iMovie for the first time and all was going well for the first 2 hours but all of a sudden it just crashed. Stopped working for 10+ minutes every time I clicked anything! Clearly, I can't work like that, any ideas on what might be causing it?

    I'm running OS X Yosemite 10.10.1 on a 2013 MackBook Pro Retina with 2.3GHz i7, 16GB ram, SSD and iris pro graphics.

    I'm editing about 3 hours of HD footage down to about a 15 minute highlights clip. I'm adding additional audio commentary over the top that has been recorded in quicktime.

    Any suggestions welcome
     
  2. AppleP59 macrumors 6502

    Joined:
    Feb 24, 2014
    #2
    I would watch your Activity Monitor
    (Applications > Utilities > Activity Monitor)

    Or look to the toolbar in iMovie itself, sometimes iMovie is uploading projects in theatre to iCloud etc.
     
  3. AppleP59 macrumors 6502

    Joined:
    Feb 24, 2014
    #3
    Any improvement?
     

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