Hair from Blender to UE

I did my hair according to this tutorial: https://www.youtube.com/watch?v=Y5XjRxbwI7A&ab_channel=pinkpocketTV In a blender, the hair looks smooth, but in Unreal it is low-poly and not smoothed. I know that problem with the strands, I have max 10 strands from blender and metahuman hair had 100 strands. But how to export from Blender smooth hair?