Is CS6 using all my processor cores?

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I have a quad core processor in my PC. Why such a new program like Photoshop CS6 uses just one of them???
Is it any way, I can change it? My PC is very fast, but it can't show that in Photoshop just because the program doesn't use all cores together.
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Posted 5 years ago

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Chris Cox

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Photoshop does, by default, use all the cores whenever it can. But some operations don't benefit from additional cores, and others would slow down if additional cores were used.

The only way to stop it from using all cores is by removing the required MP Support plugin.