IPhoto 9.3 using over 60% of CPU usage

Sinec the upgrade to iPhoto 9.3 it hogs CPU usage over 60% getting beach balls etc.
I have to quit just so I can use the Mac with other applications.
OS 10.7.4 8GB RAM 400GB free on HD new fitted only a week ago.
I do use Aperture and they share a library.. Anyone having the same issue? or anyone
with any suggestions?
Cheers all,

Make a temporary, backup copy of the library if you don't have one (select the library and type Command+D) and apply the fix below:
Fix
Launch iPhoto with the Command+Option keys held down and rebuild the library.
Since only one option can be run at a time start with Option #1, followed by #3 and then #4.
Launch iPhoto after each rebuild and see if there's any improvement.
OT

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OS X is running incredibly slow. kernel_task process is constantly using 300% and upward CPU usage.
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Report generated 20 December 2014 3:38:49 PM AEST
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Click the [Adware] links for help removing adware.
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MacBook Air (11-inch, Mid 2013) (Verified)
MacBook Air - model: MacBookAir6,1
1 1.3 GHz Intel Core i5 CPU: 2-core
4 GB RAM
BANK 0/DIMM0
2 GB DDR3 1600 MHz ok
BANK 1/DIMM0
2 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n/ac
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Intel HD Graphics 5000 - VRAM: 1024 MB
Color LCD 1366 x 768
System Software: ℹ️
OS X 10.8.5 (12F45) - Uptime: 1:24:6
Disk Information: ℹ️
APPLE SSD SD0128F disk0 : (121.33 GB)
disk0s1 (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 120.47 GB (106.42 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
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Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
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Mac App Store and identified developers
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uTorrent Application (/Applications/uTorrent.app)
Internet Plug-ins: ℹ️
QuickTime Plugin: Version: 7.7.1
JavaAppletPlugin: Version: 14.6.0 - SDK 10.8 Check version
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None
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Time Machine not configured!
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duplicate of
11855042
Open
Problem ID: 12055936
08-Aug-2012 11:18 AM SÃ©bastien Ruel:
Summary:
Mail.app become unresponsive and use over 100% of CPU when i'm behind a corporate proxy that restrict access to IMAP protocol.
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08-Aug-2012 11:18 AM SÃ©bastien Ruel:
'Capture d’écran 2012-08-08 à 09.11.47.png' was successfully uploaded

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