also why are you trying to start this new wallet you are not sunny king the dev of primecoin
already not good that your pool holds most the network
It's incorrect question, because "new wallet" don't implement any soft fork or hard fork, it full compatible with current network. Look here
https://bitcoin.org/ru/choose-your-walletMay be you think, that all these wallets made by Satoshi?

And don't forget, last update from developer was at 2013 year.
maybe OS makes difference
Here is screen of system with Phenom 2 X4 955
I don't see GPUs amount on second screenshot, but 42% CPU load looks normally.