Wood can be a lot faster. Ellis Don opened it's now quite successful (I've noticed they are constantly hiring) pre-fab plant in Stoney Creek that has been pumping out pre-fabbed wood construction modules for about 2 years now that are getting used to build things like supportive housing in Toronto.
5+1s have lead to a complete boom in apartment construction in the US as it's so cheap to build them. Basically every US city has them. When this project was first approved it immediately reminded me of them. I'm really surprised there hasn't been a push to bring them here as they are apparently quite efficient. I don't think our building code is really supportive of them which makes them impractical to build here.
https://www.google.com/maps/@39.7661.../data=!3m1!1e3
https://www.google.com/maps/@30.2900.../data=!3m1!1e3
https://www.google.com/maps/@40.0197.../data=!3m1!1e3
https://www.google.com/maps/@44.9619.../data=!3m1!1e3
https://www.google.com/maps/@42.3529.../data=!3m1!1e3
https://www.google.com/maps/@27.9517.../data=!3m1!1e3
etc., etc., etc.