The Acer X111 has a maximum resolution of SVGA (800x600). That's 53% less resolution than a WXGA (1280x800) projector, which is the most frequently found resolution.
This projector's resolution (SVGA (800x600)) is in fact the worst resolution across all projectors of this age and type.
Across comparable types of projector the best resolution is WUXGA (1920x1200).
What does "projector native resolution" mean?