If they are veterans with better gear then these militia should outperform regular troops??
Not necessarily. As opposed to the case with NATO countries (especially around Eastern Europe and Scandinavia), reserve units / civilian militias play a pretty minor role in the PLA as a whole, thus having very little resources allocated towards them. Even in wartime mobilization scenarios, the PLA reserves are deployed towards backline duties (logistics, security etc.), and won't be asked to directly engage enemy forces unless absolutely necessary.
This is pretty well reflected in the less than 30 day training reserves receive annually and the almost complete lack of heavy equipment within the CM. Combined with age, health conditions etc. CMs / reserves are pretty much just middle aged Chinese uncles with a bit of experience and money to spare on private gear, honestly a joke compared regular PLA units.