Applications take up 300% of the CPU

Discussion in 'MacBook Pro' started by Bonneswe, Mar 15, 2016.

  1. Bonneswe macrumors newbie


    Feb 18, 2011
    I have 13" MBP (2011) MacBookPro8,1 that runs OSx 10.10.5 Yosemite. I have 16GB Ram and at least 200GB free hard drive space.

    Since a fair couple of months now, the CPU tend to spike to over 200-300% when using for example Lightroom or even Firefox. It is like it's not multitasking/swapping at all...
    Anyone now what could be the problem? Any remedies?

    All the best
  2. Ries macrumors 68020

    Apr 21, 2007
    Lightroom could be face indexing. Firefox shouldn't do that unless you have tons of tabs or RES installed. Did you check activity if it is actually those apps?

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