[RyanW]

ATR specifically states that it "affects how fast you move when you react, but not how quickly you react in the first place." The speedster who "sees the pathetically slow attack coming and steps easily aside" has ETS and Enhanced Dodge (or just extremely high Basic Speed for a good base Dodge score), in addition to ATR. Altered Time Rate on its own is pretty unrealistic--not just in the sense that normal people don't have it, but in the sense that any being who has that ability should have other related abilities.