After looking at this again maybe I can offer a little better help or advice to try. Regarding understanding the voices try having your provider increase the “TK/Threshold Kneepoint”. If this TK is set too low it can cause the hearing aid to go into compression too soon. Raising this can help to let more information in and can improve the understanding in general.
The static issue is difficult to trouble shoot without seeing the hearing aid. Perhaps it needs to be repaired? Maybe a new microphone will correct this. But, assuming that it is working properly. Really hard to say.
Regarding voices being low: Raising that TK that I suggested above will also help with this. Your provider can also raise “gain for soft sound” to help with some of the soft speech information. Your provider should know what this stuff means with ease.
Do you have knowledge of your test results? Do you know what your speech discrimination is? If you have poor discrim (ability to understand) then it could be more difficult all together for understanding.
Just keep with it and be positive and patient with your provider. A good attitude does wonders for both the patient and provider.
Hope this helps you. The Virtue is a very good product so feel good about what you have purchased