Rapid collocates with these nouns :
Acceleration, access, accumulation, advance, ascent, assessment;
Breathing, build-up, burst;
Change, climb, competition;
Decay, decline, decrease, demise, depletion, deployment, descent, destruction, deterioration, development, disappearance, disintegration, drop;
Emergence, erosion, escalation, establishment, evolution, exit, expansion;
Fall, fire, fluctuation, footstep;
Gain, growth;
Heartbeat;
Identification, improvement, increase, influx, integration;
Loss;
Motion, move, movement;
Onset;
Pace, passage, progress, progression, promotion, pulse;
Rate, recovery, reduction, reform, repair, resolution, response, retreat, return, review, rise;
Shift, spin, spread, stride, subsidence, succession;
Transformation, transit, transition, turnover;
Withdrawal.
Fast:
Acceleration, access;
Bowler, bowling;
Car, computer, current;
Dance, delivery, descent;
Exit,
Film, food, friend;
Gallop, growth;
Horse;
Lane, lap, learner, link;
Modem;
Pace, passage, progress, pulse;
Rate, reaction, reactor, reader, recovery, reflex, relief, return, rhythm, road, route, runner;
Service, speed, stretch, stroke;
Tempo, time, track, traffic, train, trot, turnover, typist;
Walk, worker
Quick:
access , answer , assessment ,
ball , bath , bite , bowler , bowling , brain , break , breakfast , breath , breather , breathing , burst ,
calculation , call , cash , chat , check , count , crossword ,
dash , death , delivery , departure , dinner , dip , divorce , drink ,
embrace , escape , exit , eye ,
fix , flash , flick , follow-up , foot , footstep ,
gasp , glance , glimpse , guide , gulp ,
hug ,
identification , intake , intelligence ,
jab , jerk , jog ,
kill , kiss ,
learner , look , lunch ,
march , motion , move , movement ,
nap , nod , note ,
overview ,
pass , peek , peep , prayer , profit ,
question ,
reaction , read , recovery , reference , reflex , reminder , repair , reply , resolution , response , retort , retreat , return , review , rise , route ,
sale , scan , search , service , shake , shave , shower , sip , sketch , snack , solution , spin , sprint , squeeze , stab , step , stride , strike , stroke , stroll , succession , summary , survey , swig , swim
tap , temper , tempo , thinker , thinking , thrust , time , tip , tour , trip , tug , turn , twist ,
update ,
visit ,
wash , wave , way , wit , word , worker
NB: those aren't complete lists.