Special since the last update, calc does need a long long time, even on a fast notebook. An app like calc should be open just instant. Even just a second is way to long on fast and modern hardware.

calc.exe on Win10 2004 loads way faster than Excel on my machine, its not even close. cmd.exe and powershell.exe are also way faster than Excel. Terminal is a smidge faster than Excel but a hair slower than either cmd.exe or powershell.exe.