Not simply. But, Yes it takes less time to complete the burn. HOWEVER... Statistically, slower speeds reduce error rates due to vibrations caused by imbalance in the disc material. The laser beam writing the music data files is very fine, and the beam reading even finer. It doesn't take much variation for the laser to miss the "Groove" where data is written. The reader (player) will try again to read data (filling its memory buffer), but if it fails to track, then the buffer runs out, and the music skips. Sometimes tracks become unplayable.
I recommend no faster than 2X. Accept the time it takes. It will know if you stare at it impatiently. Go change your diesel spark plugs - the disc will be done before you get the first one out.