See, it used to take me an hour and a half just to flat iron my hair. But now it takes me just under 30 min. Why? How? I don't know exactly, all I can say is that when I changed products and tools, my hair responded to the flat iron better.
When I got my Jilbere flat iron my timing went down to about 45 min. But once I started using Joico, it shaved off another 15. I don't know what's in there but whatever it is, my hair likes it. When I flat iron my hair comes out smooth, silky and bouncy. I used to have to flat iron with smaller sections to get the same result, hence the longer flat ironing time. But now I don't. I grab a good size chunk (not too big) and go.
And the best thing is that I only have to flat iron once. As long as I wrap my hair at night with a little almond oil, my hair looks great without the midweek touch up
I'd say experiment with different products and tools. You might find that your time is cut in half too
HTH
