I don't do squats or heavy deads anymore. I know. I know. Old age. Bad back. Walking and standing up straight for a few more years is still important to me. I'm in my fifties and feeling a little torn up. I still work through a bad shoulder, but I listen to it and adjust as needed.
Most of my stuff is is the 8-10 rep range, but I like to throw in some work in the 4-5 range. That's where it really sucks the wind out of me. I don't think I need 3-4 minutes, but I could put my ego aside and see how it is with two minutes.