22” radiator, do they keep up

I’m curious if the 22” rads keep up in stop and go traffic and ac on ? I currently have a 26” rad but 22” opening ( that’s what the car came with), works great but I need a new rad and would like to go to a 22”. Cutting the rad support is not an option.
What is the cubic in displacement is the engine you are trying to cool?
What type of fan are you using?
Auto or manual transmission?
What is your rear axle gear ratio?