Running MacOS 15.1 on Late 2008 MacBook, cant fix battery problem

Running MacOS 15.1 on Late 2008 MacBook, cant fix battery problem

I bought it for 40 euros, added a Kingston SSD and I am dual booting it with Mojave and the latest MacOS 15.1, but becuse the battery is not in the laptop its so slow. I tried to enable the setting (Disable Firmware trottling)in OpenCore but every time I do it and rebuild and install opencore its reverts to being disabled.

submitted by /u/Neither-Break4008
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