 According to sheet music published at Musicnotes.com by Universal Music Publishing Group, "Slow Down Baby" is written in the time signature of common time with a moderate beat rate of 110 beats per minute.The song is written in the key of F minor and Aguilera's vocal range spans from the low-note of A3 to the high-note of G5.According to Spence D. of IGN, "Slow Down Baby" interpolates a "vocal page" from LL Cool J's "Jingling Baby" (1990).