I have built the run-* test programs of gpgme for Windows. run-keylist --cms --secret takes about 23 seconds. 3.7 seconds are gpgme initialization/setup (gpgconf --list-dirs, gpgconf --list-components, gpg --version, gpgsm --version, gpgconf --version). Most time (2 x 6-8 s) is lost starting gpg-agent and dirmngr. (keyboxd is not enabled here.)