I found a few specialized photo upscalers online with supposedly "AI" smart upscaling to allow lower resolution to be upscaled to fit on poster sized print outs.
Given I don't use PhotoDirector too often, I was wondering if the same "features" might be available. I saw under "EXPORT" you can change your export size but that doesn't necessarily fix the pixelation when starting with a lower resolution photo. What is needed is a "Enhancer" function.
Here's an online tool that seems to work to a point:
AI Image Upscaler – Enlarge Images & Photos Online for Free (icons8.com)