I drive off gently as soon as I start the car - no hard acceleration at all, very, very soft on the gas. I'm a sympathetic driver - I can't recall what the owners manual says, but every other car's manual that I've ever read tells me this is OK.

I don't give it full throttle until the oil temp is showing about 80 -90 degrees C.

I don't think it is feasible to wait until the car is warm before driving. It's a fairly cold blooded engine, so you'll be waiting a while.