When amateur players train or take lessons, they spend a lot of time on technique, tactics and physical preparation. Without a doubt, everything is very important. But it is essential to understand that 70% or 80% of the time of a match is spent on something else.
During a match, the actual playing time is 20% to 30% of the total time. The rest of the time you change sides, you wait for the opposing service, you go for balls, you communicate (strategy, tactics and / or dispute, etc.), celebration of points, etc.