[aftbit]

That doesn't sound like the best ratio to me, but I don't know what you are running or how good your deploy process is at catching issues. With a 4 person team, you are probably better off discussing risky/bigger changes as a whole team, and allowing 1 review for smaller, less risky changes with well defined rollback processes.

[carlmr]

Also with a team so small you can't afford wasting it on meetings.

You might need focus, i.e. non-meeting days, 3 days a week.