Time is money, or are you going to waste it?

I see the problem as follows. When playing with unrealistic turn timers (10 minutes), most players (not all!) only engage with the game during their own turn. That is, during their opponent's turn, they watch movies, play other games, etc.
Why does this happen? Because they have an EXCESS of time per turn, which means that everything that can be done is done during their own turn.
What does this lead to? A loss of concentration and a decrease in the quality of the game, ultimately leading to "non-strategic" gameplay. "Wandering aimlessly is a strategic blunder."
Who is this not applicable to? A few MASTERS.
What should be done?
Templates with compositions like 8..., 6..., Nosty - 6 minutes. Templates like CM - 4 minutes. "Masculine" templates - 2 minutes. And then, during the opponent's turn, the player will start to think, to build strategic plans.