This salsa combo is kind of tricky to perform, so practice it various times at home to get the timing down: especially the mechanics of moving around the lady and moving their arm down - so you don't break it.
Practice this material with counts first and music second. Once the rhythm feels steady, add expression without letting the timing drift.
Stronger rhythm awareness helps every other part of salsa. Even if the move itself is simple, better timing makes the whole dance look calmer and more confident.