Best Lightweight Security Software for Older PCs

I’ve got an older laptop I still use for email, browsing, and writing. It’s running slow, and I think my current antivirus is too heavy. Can anyone recommend lightweight security software that still offers decent protection without dragging performance down?

Look for security software that allows you to customize scans and disable real-time protection if you're not online much. I also suggest running it in silent or gaming mode to cut background activity. Sometimes less is more, especially if you’re only using the PC for light tasks.

I tested a few options while trying to revive my decade-old Lenovo and landed on a security tool that runs quietly in the background. It doesn’t flood me with popups or updates, which is a bonus. Before choosing, I browsed forums and review sites, including this thread on https://total-av.pissedconsumer.com/customer-service.html to get a sense of what other users experienced. That helped me avoid tools with bloatware or renewal traps.