I recently installed elementary os freya 0.3.1 . At first , when I tried it from usb , the os ran smoothly considering it wasnt a native install. However, after I installed it ,it lagged pretty bad! Files took forever to load and close and graphics were really choppy. Plus, the fan wouldnt slow down and made noise the whole time. I tried installing the nvidia drivers from the Additional drivers tab but nothing changed . I have a compaq presario cq61 which seems totally compatible ,and every other distro I have tried runs pretty smoothly.Any suggestions?

  • I have freya 0.3.1 installed in an USB myself and it runs quite smoothly. I don't have a swap partition, though. That tends to slow the system down if you have enough RAM, besides reducing the lifespan of the USB stick itself. Do you have a swap partition?
    – user2418
    Commented Sep 17, 2015 at 8:37
  • I installed the os using the default options of the installer so I guess it created a swap partition
    – Aris
    Commented Sep 17, 2015 at 9:55
  • You have to use the "Something else" option to install it without swap. After re reading your original post, however, I am not sure: did you mean you installed it in the USB stick? I was assuming that.
    – user2418
    Commented Sep 17, 2015 at 9:58
  • No, i installed it normally. I just tried it before installing from the live usb
    – Aris
    Commented Sep 17, 2015 at 10:19
  • Oh, I see. In that case something else might be happening there. Maybe someone else has experience on this and can add some perspective.
    – user2418
    Commented Sep 17, 2015 at 11:09

1 Answer 1


Your hard drive might be slow.Try replacing the hard drive with a new one or an SSD.Slow disk access can make your system slow.The USB does not use the disk but the USB instead so it is faster

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