Yes, as u/JalapenoTampon alluded to – The “static” KW QS is no indication of the variable dynamic of the the fluid ad auction.

The search query, in relation to the adgroup level targeting, in relation to the ad content, in relation to the website content, are all impression level variables, that you are not understanding yet… Then we have to put campaign level reach/impression share/competition variables in play… No disrespect, it just takes time to understand all the variables at play. 🙂

Horse before the cart captain. 🙂

What is the goal of your advertising? What is the objective that you wish to accomplish?