RDP Steals hashing power?

[aab23c]

So while my system is hashing i get 1100mhash +/-, however, when I check it via RDP, no crashes, but the hash rates take a nose dive of around -300/400 mhash from what the system produces.

Does anyone know why this occurs, or if there is a better way to monitor, check in on the system from time to time?