lead-footed
adj/ˌlɛdˈfʊtɪd/
Etymology Lead is a heavy metal; therefore feet made of lead would move sluggishly, or weigh heavily on the accelerator pedal of a vehicle.
1
Slow, boring, dull, or stupid.
2
Tending to drive too fast.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.