The driver side front requires a little more effort (almost a slam) to close, rest of the doors close easily.Just like the rear hatch, is there a way to adjust the driver side front door for easy closing ?
I had a similar problem with both front doors on my Model S. Took it into the service center and they said the latch mechanism torque setting was not at the correct level. They adjusted both doors and the driver door is now fantastic. Unfortunately, the passenger door now closes well, but has a metallic sound when latching.
The service techs also apparently put a slit into a plug that allows some air to escape from the car when the door is being sealed.
My suggestion would be to run your car into a service center if you have one in your area.