It's true that GG's Ethash kernel performs better on Windows.
I just started with optimizations anyway.
So, respectfully, what ever happened to Zcash? We still don't have a first-rate open source miner. All these other algos already have decent open source miners available to them. Just sayin'.

Oh, I haven'y given up on that yet.
You have to understand, though, that the competition for Zcash miners is much more intense than those for other miners, and my resources are quite limited. It seems to me that people assume that first-class open-source miners just automagically happen, but that's simply not the case.