The first thing I recommend doing is to replace or upgrade the Java Runtime. You can do this using the link below. Download the installer and then overwrite your current installation. Although this is not recommended, you could try it, but if problems appears, remove the old one and then install the new one.
Secondly, it might be possible that ViewPowerMini is a actually a resource hungry product that needs additional processing power than a normal application in which case it's a normal thing.