Pressurization has gotten better over the years. Modern planes generally pressurize (or depressurize, more accurately. Sooner and slower. Like, imagine starting

Pressurization has gotten better over the years. Modern planes generally pressurize (or depressurize, more accurately. Sooner and slower. Like, imagine starting to transistion to the target pressure - usually equivalent to 6-8000ft, over time, starting as soon as the door is closed for pushback, instead of only adjusting during the climb.