When I had a P3S, I used the parabolic reflector type Antenna boosters. More than doubled my range. I also had a small USB powered booster that I rarely used or needed. In clean air, I could get a mile with just the parabolic instead of 150 yards before signal loss. Be careful to aim directly at your drone, if using reflectors, as the signal is narrowed. Cheap alternative anyway. Good luck, stay safe. ?
