The word "swishing" is often associated with the sound of something moving quickly through the air. If you are looking for synonyms for "more swishing," you may consider using words such as "swooshing," "whooshing," or "rustling." These words all capture the idea of something moving quickly and smoothly through the air. Other words that could be used include "fluttering," "whistling," and "swirling." Depending on the context, you could also use words like "flowing," "gliding," or "streaming." All these words can help add a vivid and dynamic touch to your writing, conveying a sense of movement, speed, and energy.