Higher compression does spool a turbo quicker, yes. But that doesnt mean you run a smaller turbo. Turbo size is preference. Yes you could run a smaller turbo on a high comp motor and get the same power but you run higher boost. The trend is more to run the same size turbo as a low comp. motor and just run less boost. I had a friend doing so on a b16 with 10.5:1 comp and running a gt35e. He ran about 15 psi and the motor had to be rebuilt 3 times. Finally he switched to a 9.5:1 compression and made the same power on a little more boost.

High compression setups arent good for the street. Less boost, high comp. the stress is put on the motor more, where on low comp high boost more stress is on the turbo. Turbos are a lot cheaper to rebuild than motors.