Yes—mainly size, optical complexity, and cost. A wider maximum aperture requires a physically larger lens, and that gets harder as focal length and zoom range increase. That’s why compact cameras with bright lenses usually have limited zoom ranges, and many start around f/1.8 but become much slower when zoomed in.

Designing an ultra-fast lens that stays sharp wide open is also difficult. At apertures beyond about f/1.4, controlling aberrations and focusing light accurately onto very small sensor pixels becomes increasingly challenging, which often demands more glass and more complex correction.

That works against the main goals of compact cameras: small size and lower price. In consumer fixed-lens cameras, the market usually won’t support the added bulk and expense. As a result, f/1.4 is already exceptional in a compact; examples mentioned include cameras like the Panasonic LX7.

So the short answer is: it’s technically possible, but usually impractical for compact, affordable cameras—especially if you also want zoom, portability, and good image quality.