Avoid/abuse gravity wells and max throttle at any opportunity you have.
Which is most of the way to your destination till you have to let the blue zone auto decelerate you as well as once or just before you have reached optimal exit speed up until you also reach exit distance (depends a little on the surrounding mass).
If you have a wing nav lock you can full throttle all the way.
Then you're not doing it right , having a defined target will make the drive have a max velocity and then slowly decelerate to the target, without a target you can let the drive achieve peak velocity and manually control deceleration, TBH it's only going to be worth the effort if you're SC 20000 LS or more.