حل لقيته بأحد المنتديات التقنيه
هذه مثال للشرح
صورتين للاصدارين علي حسب الاصدار بتاعك شوف وطبق الشرح وان شاء الله يظبط معاك
تحياتي

Edit > Preferences > Plug-Ins and Scratch Disk. It has been quite a few versions back since there was a size setting for the scratch disk. You now just tell it which drive you want to use for the primary and secondaries. Once it fills the primary it spills over to the secondary. If you have a second physical drive everything runs faster if you assign it as the primary.
Also go to Memory

and Image Cache and increase the RAM Photoshop can use. Keep in mind that you are only letting it take a percent of the RAM that isn’t being used when you start the program. That isn’t a percentage of the total RAM. With a Gig of RAM I find 80% works pretty well unless you have documents you want to scan at high resolution with Photoshop running or have another program you run concurrently like Illustrator. The default is usually too low IMO.
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if you can keep your head while others around you are losing theirs then there is something you don't know
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بما انك مصور شوفت الحل هذا بمنتدي خاص بالمصورين وطلع العيب منه
Do you have Canon's plugin for RAW camera files installed? If so,
try uninstalling it. If I remember correctly, this plugin causes slow
startup times on some systems.
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وهذا الاخير
Slow loading of Photoshop may be caused by one of several problems,
including:
- A large number of fonts, and/or corrupt or damaged fonts installed on
the system;
- A very large number of plugins;
- Insufficient RAM;
- Viruses or spyware infecting the system
يمكن من الخطوط كثيره
او الفلاتر والاضافات الي اخرها
او فيرس او سباي وير شيك علي جهازك
ان شاء الله احد الحلول تفيدك