Conserving one's power by engaging in combat at a level that is
"nothing" compared to their 100% and amplifying their Ki in short bursts is a consistent trend throughout the series; characters suppress during flight, King Piccolo unleashing his full power reportedly shortened his lifespan, Master Roshi has to undergo a physical transformation to draw out his, Frieza undergoes a similar transformation when he releases his, Super Saiyan and Super Saiyan Blue were both trained to continuously exert theirs without exhaustion, and in almost every occasion someone does explode into full power, it's a spectacle worth an entire page.