Re: Microsoft Defender, I’m actually talking about defender on macOS. It is a multi platform product. I hear infosec is pretty happy with it. Me? It uses 100% CPU even when I’m doing nothing. I’m not happy.
Try some of the steps on this page [1]. In particular, enabling real-time protection stats and then adding exclusions for the processes causing the most file scans can help.
1. https://learn.microsoft.com/en-us/defender-endpoint/mac-supp...