2. surcharge, extra charge, additional fee or charge Customers are not willing to pay a premium. 3. bonus, reward, prize, percentage (informal), perk (Brit. informal), boon, bounty, remuneration, recompense, perquisite Shareholders did not receive a premium on the price of their shares.
The Flash is faster, which is why he's called the fastest man alive. Impulse stated that Superman can reach 99% the speed of light. Wally West (Flash) can hit the speed of light and even beyond. The Flash has the Speed Force, that's what gives him his speed.
Warp speed is supposedly faster than the speed of light, I think...   So warp speed is faster than impulse speed.   Warp v. Impulse   Warp speed, as above, is faster than light, whereas impulse speed is used to move around within a sector of space. Warp speed is much, much faster.   Actual Speed Differential   According to the Star Trek Encyclopedia, which uses the Okuda warp scale, impulse speed is 1/4 lightspeed, or 270 million km/h. Warp 1 is lightspeed, or 1078 million km/h. Any warp factor is considerably faster than impulse (or sublight) engines.