Pushing CPU to 100% is not the right solution. Idea behind PoS is to use very little power to run the network, a so called eco-friendly cryptocoin.
Never said it's a solution. I proposed it as a troubleshooting procedure.
maybe you can add a new command like "pospriority" to yacoind / debug window to change the POS miner priority for testing purposes?
I've added a command-line only switch "-fastpos". Usage:
yacoin-qt -fastpos=1
Pull request created and I would build a windows binary, but I've accidentaly deleted my dev virtual machine...