Say what you want about G-Friend but they're hard to beat in terms of sheer precision. I swear they must practice these routines at double speed allthetime.
Plus, this video is worth watching just for the TWICE members' reactions. All the guys are laughing and clapping and meanwhile Tzuyu is just like "fuck this shit"
Anyway, for the purposes of comparison, here's TWICE doing Cheer Up in double time: