VATS and ignition cylinder question

[8cam]

I have not had one problem with my PASSkey (knock on wood) but this weekend my daughter was driving the car and had a problem with it several times. The tumblers in my ignition lock are extremely stiff, and the key requires a good amount of force to push in and remove. I just think she wasn't getting the key in all the way, resulting in a 4 minute wait before I could start the car. I told her she needs to work out more.

Is this normal for these ignition cylinders? In my old cars I would use a bit of graphite, but I'm not sure how/if this might affect the PASSkey system. I'm tempted to bypass it, but I really prefer to have original systems working like they are supposed to. Except for CAGS, which is just stupid.