It’s not super important and won’t drag down your AA but I’d still try to get at least an 18. PAT is just a lot of practice. It takes more time for some people for the questions to click.
For me, I approached most of the PAT questions with process of elimination. So identifying one different feature between two answer choices and determine which is the correct feature. Then keep going until finding the correct answer. Start slow. Focus less on time and more on identifying the correct answer. As you practice more, speed will come.
Also, focus on getting the easier PAT sections down. Hole punching and cube counting both have good strategies on Bootcamp and those sections you can score 13+ with enough practice. That’ll give you more room for error in the remaining sections.