Sorry to rain on the parade, but that ain't necessarily so.
Quite often, when trimming a flat-bottomed car for top end speed, the rake must be decreased - usually by raisng the front.
You can also go too far in lowering the car. If too low, you will choke off the airflow under the car, which will dramaticly decrease downforce, and raise the drag.
Sorry, but it's not a pat answer!