The Acer X113P has a maximum resolution of SVGA (800x600). That's 39% less resolution than a XGA (1024x768) projector, which is the most frequently found resolution.
This multimedia projector's resolution (SVGA (800x600)) is in fact the worst resolution across all 20000:1 contrast ratio projectors that have been on the market for around the same time as this projector.
A 1080p (1920x1080) projector native resolution is the best resolution amongst comparable types of multimedia projector.
What does "projector native resolution" mean?