More voluntary acts are not automatically better. The validity of an act, sincerity, conformity with the Sunnah and due regard for other rights all matter.
For example, excessive voluntary prayer that repeatedly causes neglect of obligatory duties or family responsibilities requires correction. Building an extraordinary routine to impress others can also undermine sincerity.
The Prophetic pattern does not make worship and the legitimate needs of life into enemies. It gives each duty and right its appropriate place.