Your stroke quality
The harder you hit the ball, the more pressure it will lose. Take four players with the same technique who play on two identical tennis courts for 1.5 hours. Players A and B each hit at 120km/h while on the second court, players C and D hit at 80km/h. The pressure of the ball will then be lower for players A and B.
The surface of the court has a strong impact on the wear of the ball. Depending on whether you are playing on porous concrete, clay, resin, grass or carpet, the surface will not have the same porosity and therefore a different grip. A new resin will strongly grip the ball and therefore reduce its life span while carpet or grass will have a lesser grip with the ball, thus preserving its felt.
Your playing style
A lifter will increase the wear on the felt of the ball, because the felt will rotate the ball a lot, creating additional friction on the strings and on the surface of the tennis court.