Why is Parallels so slow?

Discussion in 'General Questions' started by AliceMeade, Jan 23, 2016.

  1. AliceMeade

    AliceMeade Bit Poster

    Messages:
    11
    I have Parallels 11 for the Mac. I am running Windows 7. The performance is terrible. When I copy a bunch of files to a flash drive, the files go at a rate of 2-3 megabyes/second. When I copy the same files on my very old Lenovo (running Windows 8), the files go at a rate of 12/13 megabytes/second. Why is this?

    Also, what is really bad is I have an old VB 6 program that I run every weekday. Running, this program consumes 100% of the CPU under Parallels. Running this same program on the old Lenovo, the program consumes less than 50% of the CPU. Why is this? Please help me.

    Thanks!
     
  2. David_T

    David_T Bit Poster

    Messages:
    34
    What memory do yo have installed, and what set on parallels. I found reducing win7 to 4Gb while the mac was physically increased to 16Gb made a huge difference. Went from jerky, slow, pinwheel running, to lightning fast.
     
  3. AliceMeade

    AliceMeade Bit Poster

    Messages:
    11
    I have 16 gig. I increased the processors to 2 and that made a big difference.
     
  4. Dhruba@Parallels

    Dhruba@Parallels Kilo Poster

    Messages:
    779

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