I have an iMac late 2015 (1.6ghz dual core i5) running Catalina. Currently, Catalina works fine on it. No delays or spinning beach balls when opening any documents or programs. I thought of installing Big Sur on it. I would like to try it but I am not sure if I want to make the jump yet. I know the only way to know is by installing it and trying it. Even though the Mac may meet the requirements I don't want to find out it still dogs in doing the smallest things. Any thoughts or experience with Big Sur on this particular Mac?