hyperpaced
overspeedy
hell-for-leather
lightspeed
overspeedily
speed of light
mile-a-minute
superfast
hyperfast
like shit through a goose
faster than Minute Rice
blazing
blistering
hyperspeed
bullet
uptempo
fast-moving
lightning-quick
hyperaccelerated
good lick
like a rat up a drainpipe
swift
fleet
full fling
prestissimo
hit-out
speedingly
feverishly
speed merchant
superspeed
rollercoastering
shoot
thunder
speed
travel rapidly
superspeedy
hurry
zip
precipitate
as fast as one's legs could carry one
rushy
with a quickness
scurrying
splitting
fizzing
hurrying
belt
whip
volley
presto