My recollection of the pre-Vatican II Mass as a child when it was the Ordinary Form, so to speak, was that the two major elevations of the consecrated Host and Precious Blood in the chalice was the high point, so to speak, of the Mass, that magic moment of the laity's profound devotion to our Lord, adoration and worship of the newly consecrated "Accidents."
Of course the high elevations were necessary for the "showing" of the "Accidents" as the priest was facing the same direction as the laity, not in the clericalism of confrontation as we have when he faces the congregation. Thus the elevations had to be high in order to be seen above the priest's big head, such as mine, as you will note in the two Cathedral photos above.
Most priests immediately following the change from ad orientem to facing the congregation in the 1960's continued the high elevations.
It wasn't until the 1970's that academic liturgists at their workshops for priests told them that they should only show the "accidents" without elevating since there was no need to elevate since the Host and Chalice could be seen even at the chest level of the priest.
And God forbid if there were lengthy elevations as these turned the elevations into "magic moments of visual adoration" when of course the Bread and Wine are food and drink to eat and drink not gaze upon. Those damn liturgists need to be condemned to the darkest corner of hell with all the unconsecrated hosts and wine they want, mold covered and sour! What dictators, what bullies what academic idiots!
Of course, I elevate high when facing the congregation, but not quite as high as when I offer Mass ad orientem.