As @DNF_Cuber said, you would have to be really efficient unless you have impossible TPS. Let’s say a normal CFOP solve takes 55 moves. In order to get a 2 second solve, you would have to be turning at 22.5 TPS (realistically, 23 if you want to get sub 2) to get that solve. That’s doing 2 U-perms (using the standard RU alg) in under a second. This isn’t even factoring in the fact that F2L is much less ergonomically friendly than an RU alg. To disprove the point even more, try doing good lookahead at 22-23 TPS.