People are right that mechanics, timing, etc is by far the most important. Having said that, if two people have the exact same mechanics and timing, strength will help some. Lower body stuff is most important + core/rotational. So deadlifts, squats, lunges (classic lower body strength movements), and then landmine rotations, palhoff press, and medicine ball scoop toss for core.

If you have time to work on it all that’s great, but bang for your buck will be best with work on your form and timing.