Yes, this I am learning. Actually, I've made some drastic improvements overall with my new board, which doesn't chatter and shudder as I go faster like my old one did. (I tried to explain this to my wife as the difference between going 80 down the highway in a Cadillac versus a rusted out Pinto). This in turn has improved my confidence and allowed me to steadily improve each time I go.
However, she still fucking zips by me on her skis like she's not even trying and it just pisses me off. Tomorrow hopefully I can make some strides as I'm assuming I'll have nice groomers and low traffic to deal with.
Yeah she's got an advantage with those long ass skis. All things being equal with skill and confidence she would always be faster than you.
I've never ridden a park board or anything noodly but your analogy fits everything I've ever heard.