Biomechanics is not just about preventing and dealing with injuries. A tremendous bonus to solving injury-related problems based on mechanics and mobility is that it also frees up extra performance that you may not have known that you had.
The same tissue restrictions that are causing your knee pain may also be robbing you of some hidden talent.
By improving your body's mechanics, improving the health of the tissues involved and installing a normal range of motion in your joints you may well find additional energy to help you run faster and longer, squat deeper or even improve your burpees.
Biomechanics is about helping you move better. And if that reduces pain as a consequence then better still.