Complex sentence: These mathematically simpler curves are slightly more efficient to process than the cubic Bézier curves prevalent in the PostScript-centered world of graphic design, and also used in Type 1 fonts.
Split into simpler sentences: These mathematically simpler curves are faster to process than the cubic Bézier curves. Cubic Bézier curves are used both in the PostScript-centered world of graphic design, and also used in Type 1 fonts.