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Why is Lion so slow?

I installed Lion on a relatively new MacBook Pro (released early 2011) with an i7 dual-core processor. It is painfully slow, much slower than Snow Leopard was. Even things like surfing the internet (using Firefox) is very slow, and I see the little rainbow circular icon frequently.


Any ideas?

MacBook Pro, Mac OS X (10.6.7)

Posted on Jul 21, 2011 6:16 PM

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Question marked as Top-ranking reply

Posted on Jul 21, 2011 6:19 PM

How long since you installed? sometimes spotlight will take a long time to index your drives and slow your computer down a LOT. Are you backing up with Time Machine? That can also slow down the computer until the backup i done.

313 replies

Nov 15, 2012 7:17 AM in response to Csound1

Think you'll find going through my various points throughout this topic that it was on point and still is.

You just couldnt help yourself but get in on the action and take the moral high ground could ya! Now if you offer no advice to this topic may I suggest you tak your own advice 🙂 That is all. Here endith the conversation between me and you.

Nov 15, 2012 7:25 AM in response to Cpl BadBoy

Cpl BadBoy wrote:


Think you'll find going through my various points throughout this topic that it was on point and still is.

You just couldnt help yourself but get in on the action and take the moral high ground could ya! Now if you offer no advice to this topic may I suggest you tak your own advice 🙂 That is all. Here endith the conversation between me and you.

Thanks for illustrating my point so neatly.

Why is Lion so slow?

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