Low speed torque and driveability ?

And you spend little time at full throttle in the top 1500 RPM range. Probably spend more time in the off idle to 3000 RPM range at full throttle with aggressive driving. Even more important is part throttle like say 50% in that lower RPM range where most drive. That is where torque is a factor.
Question is at part throttle your not using full amount of torque anyways so does it matter if your down 20-30 tq at full when your probably below both at part throttle most of the time?