Thin fill  

RE: Thin fill

a picture of the side of the print would be good to help, for me it looks like its too high z axis and the layers are not sticking, so going all stringy thin, picture of the layers from the side may help rule this theory out though 🙂

RE: Thin fill

From what I can see from the side, it looks rough and maybe bubbly. This, plus how the infill looks, I'd say it might be under-extrusion. Normally infill like that, with a good clean perimeter wall, is trying to print the infill too fast and the hotend can't keep up. Slowing down would be the solution there, but you said you're using stock profiles so it shouldn't be too fast. I'd suggest going through this troubleshooting article and at least trying a cold pull, and pushing the hotend up. https://help.prusa3d.com/en/article/clogged-nozzle-hotend-mini_112011

Some more info and images would be nice as well, material, temperature, etc. You can export a 3mf from Prusaslicer and attach it to a forum post. Set it up exactly how you sliced it, click "File", then "Save Project As" and select where to save the 3mf.