Leshcat doesn't check your hardware for compatibility, it just drops the drivers in. The Mobility Tool checks your hardware to ensure that it's compatible with our hardware. Since it's saying that you're hardware is incompatible, it means that our drivers won't end up working (hence the poor clocks).
Frustratingly, this means that you can only obtain drivers from your laptop manufacturer. Attempting to install our drivers manually will have unpredictable results, since your hardware's specs don't match up with what our software needs to run normally. Sorry I don't have better news for you.
AMD Customer Care
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