Although You may not want to hear this, its actually good price with current difficulty. Here are some rough numbers for my RIG of 5* R9 280x:
SlothCoin SHA3 - 16,759,500 SLOTH * 0.00000004 LTC * 0.0244 BTC -> 0,0163 BTC / day
HeavyCoin HEFTY1 - 295 HVC * 0.0000391 BTC -> 0.0115 BTC / day
Litecoin Scrypt - 0.62 LTC * 0.0244 BTC -> 0.0151 BTC / day (but also twice power consumption / heat)
What's your operating cost for that rig? I'm only running a single GTX 760 but I haven't found
any coin that even covers my running costs, let along the capital cost of kit (which in my case was free as this is my gaming system, not a dedicated rig).
IMHO having SLOTH selling for litoshi instead of satoshi just makes the problem worse.
I've made more from arbitrage of altcoins between different exchanges than I have from actual mining.
p.s. Keccak running at half the power isn't a good thing, it just means that the code isn't utilising the GPU as well as it could be.
Mining sucks theese days, it can barely cover electricity bills. So far it was good, since I used it to heat up house, but with incoming summer I´ll probably turn it of and resel. (profitable) GPU mining is probably over