The thing about game development is that you as the developer are guaranteed to be blamed for poor performance on good machines. This will be a support nightmare.
There doesn't seem to be any way AT ALL to override NVIDIA's cleverness when it comes to nw export.
EDIT: Actually, you CAN override it by taking the same steps to override Chrome. It's a lot of steps to ask of the end user though, and no way to detect when to inform them that they will need to do this.