Speed or tempo.
Pace is the speed that something is moving or changing. Other words are speed, or rate.
speed, quickness, alacrity, rate, pace, tempo
Rapidity, or rapidness.
pace, rate, chat (slang)... Or if you mean the drug: sulf, whiz, meth.
step
increase your pace
swiftness, hurry, velocity, pace, acceleration.
hymns
"Hymns" is another word for religious songs starting with the letter "h." Hymns are traditional religious songs typically sung in churches or during religious ceremonies.
t for tempo
Rate is another word for speed. It is the speed.
pace