I have a BI system that has 24 cameras. I've been using Blue Iris for years. I am running BI 6 ALL are recording continuous plus triggered. All are running 15 FPS. All are using sub-streams, direct to disk recording. Intel HA and BVR. My CPU usage used to run 10-20% typically. I don't use this PC for anything other than BI. It is a Intel i5 12400 CPU w/ 32gig RAM and 24tb of HD space. So what's with the jump in resources? I started noticing the jump a few months before BI 6 was available. Nothing has changed on the system. I've got it pretty well insulated so I don't run windows defender or antivirus. It's almost like I've got some memory that is going bad. There are times where I'll check the system and I'll be using 80-90% of my available RAM. I reboot and I'm good to go until the next random memory issue.