[Suppafly]

I'm generally in favor of Defender, but it can definitely cause performance issues, especially in relationship to other windows processes like windows update.

If you keep your system regularly updated, it's less of a problem, but I often help people who basically never update or leave their computer on long enough for Defender to do complete scans. After a certain point it basically becomes impossible to update because defender fights update and chrome and discord and etc etc etc, for access to the files and you end up with the cpu and harddrive maxed out for a couple of days before everything completes.