It takes not only a sublime piece of music, but also an inspired performance, to bring about that pause before the applause begins. It's not going to happen every night, nor should it be expected.
However, Uta Hagen writes about this hush in Respect for Acting: there is a profound difference between the sort of bravura performance that brings an audience instantly to its feet, and a performance that reaches from the depths of the actor's soul into the audience's. That, she says, is the performance that creates the hush before the audience bursts into applause, and we should always be striving for that level of performance, no matter that we are inevitably going to fall short on many nights.
I am old enough to remember when the Metropolitan Opera began to ask the audience not to applaud after every aria, on the grounds that it hindered the singers from sustaining the dramatic flow of the opera. It may be true for more modern works, but Baroque operas were written to be interrupted. I do, however, appreciate being able to listen in silence while the music is actually occurring, though I figure that if you need to cough, you need to cough. Rattling your program, however, is under your control, so watch it, buster! 😁
In general, though, I favor a sincere reaction from the audience over rigid etiquette, so I'm not going to shush anyone who wants to applaud after the first movement. But I'm not in favor of the compulsory standing ovation and wild cries that are apparently de rigueur these days. Much as we wish they could all be, most performances aren't that wonderful!