no, no, and no again! 4 minutes is too little, even for a Standard Map.
My idea is that we should still try to stick to 4 minutes, at least for Standard Maps.
But here, it's up to each player, as they say, some want to play a high-quality game, while others want to move pieces without too much effort. Both goals are valid! BUT in tournaments, 6 minutes usually leads to postponing the game and, as a result, delaying the tournament schedule!