High cpu usage copying files

  • Hi guys,

    Just to understand if it's a problem or is it just normal: I have my rpi4B LE 10.0.1 with an hdd 2 Tb connected via USB 3.0. When I start copying a file within the hdd the cpu usage explode and I'm unable to do anything else on the rpi4.

    Is it just normal or is there something that I can change with my configuration?

    Thabk you!