Is it possible to push power button and immediately drive off with the electric motor instead of waiting for the ICE to kick on ?
For about 7 seconds, then the ICE will come on. Also you can install an EV button and hit it before the ICE starts. But this is usually a bad idea unless you're just moving the vehicle a few feet then shutting down again. It's better to let the car go through it's warm up cycle while at low speed, then it will be in it's most efficient operation range.