Enabled static diff feature for Myriadcoin
You can set static diff by setting sd=XXX text at miner's password.
You should not set too low or too high value for this.
To find the optimal difficulty value, you have to mine for an hour without static diff option and check the average difficulty value assigned to your miner.
Set one of those median value as difficulty value and check later whether your hashrate is shown similarly on dashboard. (It may need few minutes again)