I believe is always beneficial to be proactive rather than reactive. In a reactive system you solve matters as they arise, this can lead to possible beneficial changes. However, solving matters before they become an issue will generally lead to optimization and aid any reactive changed needing to be made. According to the FDA Sec. 820.100 explains Corrective and preventive action; therefore as you said, a proactive system in place will lead to lesser issues and efficiency. Now in terms of CAPAs yes they are more of a reactive protocol, however, a higher number of them can have a negative implementation.