Speed has nothing to do with it - solely reliability for this particular machine. I’m unsure from the statements you’ve made above exactly where in the process you are. Maybe this will help?
Is your machine connected to the internet? Yes/No
—> If no - go here for instructions
If yes, are you able to begin the calibration process? Yes/No
—> If no - go here for instructions
If yes, does the calibration website say it’s still working? Yes/No
—> If no, then your calibration is complete. Remove the test piece and move on.
If yes, leave it be, it can take quite a bit of time.