Is it possible to keep a responsive acceleration at all time for your 05 Legacy GT?

[njchen24]

Greetings:

My car is 35% urban ad 65% highway. The NJ highway traffic speed on the passing lane is around 65~70mph. So I am force to keep a steady space most of the time. As a result, my 05 Legacy GT has a poor acceleration especially when I want to pass from 60 to 80mph in highway and from 30 to 60 in urban Ave. The "unlearn" method (disconnect Neg. battery and apply the brake at an almost empty tank before fill up...) and drive sportly (border of maniac) give back the Legacy its responsiveness for only a week or two max. However, it is impractical to do this at two weeks interval. So, is there way to keep a responsive acceleration at all time for your 05 Legacy 2.5GT?

Advance thanks for your time and help.