MSYS2-packages: tools get so slow outside MSYS2 shell

Hi,

I am sorry if this is not the proper place for this question.

The tools (like cp, mv, cat, etc.) work smoothly under the MSYS2 shell, but when I try to launch them under Windows cmd, they will take too long to response. For example, open Windows cmd console and cd to %MSYS2_ROOT%\usr\bin, input mv and hit enter, it takes almost 10 seconds to output the help info of mv…

I am new to MSYS2 and it is really great, I just want to use it everywhere, not only under MSYS2 shell, is it possible? Or, is there any workaround to achieve this?

Thanks, Kelvin