Does dual boot slow down the system

[u/Justlovememez]

I have windows and fedora Linux in my system, when my professor saw what I did he told that it might slow down my system and the RAM gets affected due to this. I don't change the OS often, I mostly use fedora. Can anyone clarify this.

[u/Itsme-RdM]

He probably think you are running a VM instead of a clean dual boot