Getting closer... Actually, though, I'm not sure how much time I can shave off! It felt like I barely paused, and there's only so much speed you can get with an iPad. Maybe if I did it on the iPad but with a keyboard?
This theme is well done for sure. FACEBOOKBUTTONS is a good 15-letter answer, and I very much enjoyed how Ms. Burnikel twisted the meanings of the three buttons into different senses of the word. Of course, COMMENTCAVA gets the nod for most clever (and it's crossed by VOILA for a very French carrefour). LIKEWHITEONRICE is another great 15-letter answer.
There's some short fill which actually did make me pause: NORAH O'Donnell I'd never heard of, and Josep Maria SERT was an unknown before this.
On the other hand, I'm happy to see UPTON clued to her:
Rather than him: