-minspeed   minimal speed for ETH, in MH/s. If miner cannot reach this speed for 5 minutes for any reason (you can change this timeout with "-minspeedtime" option), miner will be restarted (or "reboot.bat" will be executed if "-r 1" is set). Default value is 0 (feature disabled).
   You can also specify negative values if you don't want to restart miner due to pool connection issues; for example, "-minspeed 50" will restart miner only if it cannot reach 50Mh/s at good pool connection.