Is there a way to make the step counter more accurate? Everyone I play with gets a lot more steps than I do. And it varies round to round even though my rounds are pretty much the same.

The number one factor is the arm swing on the side you are wearing your watch. There is an accelerometer sensor looking for very specific motion to count your steps. If you are walking while holding the club, have it tucked against you with that arm, or riding in a golf cart, your steps will not be accurately captured.

You can also set a custom stride length on your online Garmin Connect account or in the Garmin Connect APP - Improve the Activity Tracking Accuracy of an Approach