Tracking is an overlooked adjustment that can make your text become more readable. This setting is an adjustment that adds or subtracts space between the letters in your lines of text. By default your tracking amount is usually set to 0. Positive values will increase the space between letters and negative values will decrease the space.
For lyric projection it is suggested to slightly decrease the tracking value of your text to push letters closer together. By default, fonts usually have a little more space between letters than what is needed for projection. Choose a tracking value between -0.1 and -2.0 for the best results.
Decreasing the tracking of your text can help bring letters closer together allowing for more text on your screen or a larger font size. Find a tracking value that best fits your needs and stick with it throughout your presentation.
To learn more worship lyric projection best practices read The Worship Media Handbook.