To paraphrase Leigh Brasington, if you try to cut a table in half with butter knife, it will take very long. If you do it with a sharpened knife it will take less time. The time you spend developing jhana is compensated next.
Besides, the path without samatha is very hard. What better than walk the path happily?
He turns his mind away from those phenomena, and having done so, inclines his mind to the property of deathlessness: 'This is peace, this is exquisite — the resolution of all fabrications; the relinquishment of all acquisitions; the ending of craving; dispassion; cessation; Unbinding.'
(Jhana Sutta - Thanissaro Bhikkhu translation)