your hashrate is good I'm using MinerGate to mine Monero with i5 2500k, very low hashrate ~90H/s with 3/4 cores you can see my testing video here https://www.youtube.com/watch?v=fGEA87ogrgw
I think mainly because i5 2500k only 4 threads.
i5-2500 at 3.6Gh, right miner, 3 threads, clean Win gives 145+h/s i7 should all give 200-270+ depending on frequency.