Let’s compare an average daily Mass (e.g. 8 AM on a ferial day at St. Joe’s, no music) in the Novus Ordo with a TLM Low Mass. Let’s assume that in either form it lasts about 45 minutes.
In the N.O., from start to finish, the priest is in a kind of dialogue with the people, accentuated by the versus populum arrangement that has become the universal norm. In between the responses of the laity and for a stretch of time surrounding the consecration, there is time for interior/silent prayer by the laity. The laity’s posture changes from sitting, to standing, to kneeling many times throughout. On the whole, the flow of the liturgy is marked by outward verbal and postural activity of the laity punctuating the span of 45 minutes. That is by design, and is supposed to be conducive to so called “active participation”. Now, and this is important, if that N.O. Mass was offered entirely in Latin and the laity in attendance knew and spoke all the responses in Latin, it really wouldn’t change “the way it goes”.
At TLM Low Mass for the same ferial day, the laity would kneel after the priest begins the prayers at the foot of the altar, and some might change their posture to/from sitting a couple of times over the next 45 minutes, while others would kneel the entire time per their preference. No responses are offered by the laity, only by the altar server/s assisting the priest. The priest faces the same direction as the people the entire time, except when distributing Holy Communion to them, that is toward the altar, a.k.a. ad orientem because classically that would be eastward. Much of the text of the Mass is prayed sotto voce by the priest, i.e. it’s inaudible or barely audible by those in attendance. On the whole, the liturgy is marked by near silence and the laity in attendance joining their silent prayers to the quiet actions of the priest at the altar.