Why is tennis scoring system based on 15, 30, 40 instead of a simple numerical sequence?

The tennis scoring system of 15, 30, 40 is believed to have originated from a French game called jeu de paume. The system was likely adapted to make scoring easier to track and to add a level of strategy and suspense to the game. The use of these specific numbers may have been a way to create a more engaging and competitive experience for players and spectators.