Fast.
"Some horses are not built to run fast an may only do a fast canter at their best; however, the gallop is about 30 mph. Thoroughbreds, which are bred for running distance but not speed, have been clocked at over 40 MPH. Quarter horses, bred and raced for short distances at speed, can reach 50 MPH in short bursts."
Move fast.
In water fast, on land their slow.
slow
fast
fast
Jaguars move slow to catch their pray,jaguars move fast to catch up with their pray.
The armodillo moves in between fast and slow
Depends on what you think is fast and slow!
fast as lightning
It Moves fast.
it moves fast
Electrons do not move fast.