Best way (faster) to get the difference from two collections

Difference between two collections - Java.java

public List<A> differenceBetween(List<A> minuend, List<A> subtrahend) {
  	List<A> difference = Lists.newArrayList();
	Set<A> subtrahendSets = Sets.newHashSet(subtrahend);
	for (A m1 : minuend) {
		if (!subtrahendSets.contains(m1)) {
			difference.add(m1);
		}
	}
	return difference;
}