low speed, high drag

adjective2

1. •
   (informal) Slow and steady.

   • Spoilers, as well as flaps, help to achieve the low-speed, high-drag descent which is always desirable in a jet transport. — 1959
2. •
   (informal) Not functioning very well; clueless or inefficient.

   • Like all OBC classes, I'm sure she received her share of low speed, high drag Arrrmy tng ! At least you had good company, Vick. — 1987