How reported hashrates on your miner are calculated and what the stratum server from suprnova gets are 2 totally different things! Just because your miner tells you you got 99 MH/s doesn't mean that you submit correct shares that are worth 99 MH/s (among other tings). The server actually estimates your hashrate based on submitted shares. It has no idea how much hashing power you have but calculates it based on your shares. Therefore, ususally the reported hashrate is not correct.
In other words from the Alpereum website:
So in the end if you would average out your hashrate over a long sliding window (let's say 4h) you would probably have much better agreement between your miner's and the server sided hashrate.
Furhtermore, difficulty fluctuates greatly. Whattomine and other sites only provide you with an estimate which is usually far from the real-time rewards you might get.
Before you accuse a pool, inform yourself about the technology behind it instead of just questioning 2 numbers on your screen
Hope that helps.
In other words from the Alpereum website:
Quote
Calculated Hashrate takes the amount of valid shares your miner has submitted over a period of time and uses a formula to convert this into a readable hashrate. This number can fluctuate, sometimes being lower or higher than your actual miner's output hashrate in the console.
So in the end if you would average out your hashrate over a long sliding window (let's say 4h) you would probably have much better agreement between your miner's and the server sided hashrate.
Furhtermore, difficulty fluctuates greatly. Whattomine and other sites only provide you with an estimate which is usually far from the real-time rewards you might get.
Before you accuse a pool, inform yourself about the technology behind it instead of just questioning 2 numbers on your screen
Hope that helps.