Have you tried to stake through a pool?
I'm staking at BTCPOP. I have been staking in BTCPOP for more than 1 year and it has been a wonderful journey. They only take away about 1,5% from the staking result, which look fine enough for me.
Here's the link if you might want to look at it:
https://goo.gl/xHSmCw

If you want to discuss anything about BTCPOP or BEAN, you'll be welcomed.

Disclaimer: I don't gain any direct incentive from your staking if you decide to join through the link I posted above. So this is not a referral link for marketing purpose.