I'm sorry I didn't quite understand your question. You are asking about Hardware acceleration for Dscaler? I don't know if that's possible.
Some video cards do the scaling in hardware (Radeon all in wonder, I think) , and there's also the H3D http://www.immersiveinc.com/ but it's very expensive. If your CPU is having dificulty with Dscaler, then the cheapest solution might just be a new CPU and motherboard.
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