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.
Yes OP. Several comics have established that when he cuts loose he is faster than Superman. Of course the supernatural or magical superheroes could easily overpower Superman. The Spectre is the embodiment of cosmic vengeance and is apparently beyond the confines of time, space and dimensions. The Phantom Stranger is also a cosmic being with supernatural powers including omniscience and omnipresence.