Yes, you can improve your results by optimizing your campaign, and this is how it should be! If your current ad isn’t engaging much, try narrowing it down and running it again. You can keep brushing your viewers until you see the results you want. With LinkedIn, you can target by industry, company, location, function, age, or education. A message aimed at people in the CEO position, you can target the CEO of LinkedIn or HubSpot. I don’t know if that’s specific ad targeting or what.