This feels like an oxymoron.
Two movies isn't that much in terms of a library of feats.
Like... comics Deadpool has like... what? 30 odd years of comics to draw upon and that's still comparatively pretty small.
I've not seen Deadpool 2, but he didn't have any bullet timing feats in the first film. Some levels of CBPH-ish stuff like the bit where he chopped off a dudes head while being inside a car that was flipping over.
If there is an instance of bullet timing in Deadpool 2 and we don't have anything to radically contradict it, I don't think it would fall under SMvsFL simply because movie Deadpool doesn't have that much in terms of feats.