The term "more slow moving" can be described using antonyms such as fast-paced or quick. When something is fast-paced, it indicates that it moves quickly, without delay or hesitation. On the other hand, when you refer to something as being quick, it suggests that it happens at a fast pace or in a short amount of time. Other antonyms for "more slow moving" can include brisk and nimble, both of which imply agility, speed, and swiftness. Ultimately, by using these antonyms to describe the opposite of slow-moving, you can paint a more vivid picture of something that is energetic, dynamic, and active.