Only real "cure" that I know of is a few mods - New diverter valves, ECU repreogramming by Revo, GIAC, Techart, Cargraphic etc., other mods won't help so much with throttle response to the "spooling lag" but do improve acceleration like high flow air intakes, max flow sport exhaust and catalytic bypass pipes.

No lag for my pepper anymore fo' sho'