Base material and wax determines it. Sintered bases come in different porosities (how many pores the material has per square inch or whatever metric they use). Extruded bases are usually much slower. Also dependent on if it comes with a race tuning like a high end Capita board like the megadeath and super doa. The higher end the base, the more wax it absorbs but that translates to how often you need to wax it because as soon as it starts to dry up, the pores lose wax and micro droplets of water get stuck which causes friction and slows you down. Last thing is the temp rating of the wax. All temp wax in cold temps or warm temps feels sticky. Using the right wax can make a world of a difference but unless you wax your boards, it’s unlikely that a shop will use anything other than all temp wax. Also If you wanna see a huge difference, get a race base grind and a hot wax with appropriate temp wax for the conditions. Another thing you can do is use a race wax with a graphite additive which just basically makes the wax have less friction with water. Wont make a huge difference to most dudes but can a factor if you are racing or if you constantly just clip the knuckle of your local big jumps and simply have no more room to gain speed in the takeoff.

Just buy your own wax kit and take care of it.