Lol ok, I'm sorry, but i gotta end the love fest for led zep. I'm sure you are aware they have quite literally plagiarized almost everything they made, and in fact actually won a case this week because the song in question was recorded before a copyright law changed it from sheet music to sound (stairway to heaven of all songs). They are at best a good cover band, but the fact that they said they wrote the stuff is complete bullshit. I will give everyone but plant credit tho for being great musicians, plant was a straight up copy of Jim dandy from black oak Arkansas.
She's playing a double bass pedal, which is very very common. She's amazing for her age, I'm definitely not trying to subtract from that, and i don't play drums so she's definitely better than me. I'm not a drummer by any stretch of the imagination, but it's not that hard to get a good roll going with a double bass pedal or to do triplets (keeping it going is another thing entirely lol). I grew up playing Metallica and the like, and double bass is very very prevalent in that style of metal. There's newer black metal bands that smoke Metallica, but not really my scene. I think the fastest out there is up around 220 to 240 beats per min, which is completely mindboggling and incredibly hard to replicate (read: bordering on impossible). That's 3 to 4 per second, sustained.
Here's a drum cover of Dyer's eve by Metallica, kind of an extreme example, but shows what I'm saying. They seldom play this live, and you will see why
Lars basically is going all out at 194 bpm for most of the song, with triplets (John Bonham used triplets so much they call them Bonham triplets) mixed in for rest periods lol. Insanity starts at about 1.15.