About ten minutes max to prepare a tempo track using “Merge tempo from tapping” is not a long time, probably take you 5 - 6 minutes when you’re used to it.
Preparation is always important and does take time in any craft whether music production or plumbing. There are, even in these days of wonderful computers, very few really magic bullets.
Later, once you have that tempo track in place, you’ll find it saves far more time than it took you to make it.
After all the best 4 minute songs are either done in an hour or can take weeks of production.