Thats because they are using 1LLL techniques and ZBLL so they basically doing ZB most of their solves which I believe even ZB is better than CFOP due to 2LLSLL with CFOP only being 3LLSLL and ZB is more effecient too with the same Ergonomics being the same and more of the solve is algorithmic than CFOP. Plus I said it was overrated, not bad.
A speedy Duck who is very fast. He formally had the WB ao5 in 3x3 which was also a sub-4 fail. He also had WB AO12 but both were taken by Max. He once got a 15.9 TPS solve. He is Kyle, he is Duck, he is fast.