Mmm pool side show 10kh/s less then what miner shows and when it does show near what miner shows it slowly drops. On BTM
I don't know where you're located, but for the BTM since all the pools are in China, you can expect to lose 10% of the Hasrate from the timeout & disconnection you have.
For instance in Europe I have 34kh/s reported in the miner, 30kh/s effective on F2pool.
Basically it mines good when China is sleeping, and I get horrible drop when it's their afternoon / evening.