I'm going to install Windows 7 to my 2005 PC because I put Windows 10 on it and it's slow, by downgrading the OS will it run faster?

I got a 2005 PC in March or April, and I installed Windows 10 on it. But now I'm starting to think I should've installed Windows 7 or lower because it's very slow, by installing Windows 7 would my computer run faster than it does now with Windows 10?
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