TH is produced by PG content, nicotine level, and wattage (atty temp)... TH can also be simulated by some juice flavorings like menthol, cinnamon, etc.
Try less nic with higher wattage (low-resistance attys/cart or a higher voltage device)
Try less nic with a higher PG blend (I like 70/30 pg/vg)
Try less nic with a menthol or cinnamon flavor