I first hear the Fear Factory cover from their album Transgression. The original is way better. In fact the whole Pandemonium record has a very special vibe. I've been playing it lots lately too.
@James Blunt Pylon is a fucking MASTERPIECE and the extra tracks too....actually all three original lineup albums are excellent; you could tell they used their passion to give us something to help inspire, not merely cataloging bad shit going down. Probably Big Paul and Jaz are writing together again. Absolute Dissent, with that amazing cover, man whenever I have to be in the city and feel disgusted with everyone I just blast that one. KJ is so calming and life affirming, strangely to some, took me forever to really get into them beyond one album or two...but it's worth it to read the lyrics and listen to live performances, not many bands worth that effort! Sadly I have no friend who really gets them yet so I have to ramble, have a good one my friend - at least the best one possible. Oh, I recommend Jaz's orchestration with the St. Petersburg Orchestra from 2019, I got a nice 12" vinyl of it, The Raven King is divine. Jaz studied composition in the East and it shows as musician myself, he didn't need a "ghostwriter" when it came to orchestra, arrangement and so forth.
Some bands lower the key of a song just to conserve the voice of the singer. That may be the case here. But for some like me, I love the versatility of band when they can change the key or speed of a song like this. It just shows they aren't afraid to experiment and change their sound from the studio album.
It's a whole step down and faster...I ran it through a program to check myself and the original is 100bpm (both single/video version and LP version) versus 111bpm here; so noticeably faster. Originally the key is C major, what I would call E Phrygian (it has the same notes but the main riff is focused around E, Phrygian is the 3rd mode of a Major key and sounds Eastern...especially fitting for much of the Pandemonium album). The faster version follows the same structure as the video version so it's in Bb Major or D Phyrgian. The chorus in any case follows the functional harmony of the major key. I found this version on the Jon Stewart Show performance too, not quite as fast but the same whole step down. The TOTP version was standard, like the video version, probably playback. There you go, more info than anyone needed lol.