The real solution may be to admit how people like to play. If players consistently take long rests after 1-w encounters, then perhaps this is the baseline. This is how people play, how people want to play, and this is how the game should be balanced.
My players also like to have high stats, to do massive amounts of damage, and win too.....so I guess that should be the baseline and I should give them all 30 for their ability scores, make all weapons do 10d12 magic damage, and at the start of the encounter just have them roll and attack and say they won? My players like their attacks to all hit also so should that be the baseline and I just stop having them roll attacks and instead tell me how much damage they do?
Your players may enjoy blasting through encounters like gods for a short while but without the tension and challenge, their interest in the game will fade quickly. The players getting everything they want is not what makes the game fun.