Well, if you just got the car, take a look at the headlamps and make sure they're not fogged/clouded/crazed/otherwise degraded by age and sunlight.
HID bulbs lose intensity with usage, so unless this is a low-mile car you'll want to put in new bulbs. That's a D1S bulb in your low beams.
This is the good upgrade bulb.
Your high beams take the straight-base 9005XS bulb. There's no direct upgrade for them. If angle-base 9005 bulbs will fit (buy one and see) then you can upgrade in the usual way by getting
these and trimming them like
this.
Headlamp aim is of ultimate importance. Even if you do nothing else, find a shop that has an optical headlamp aimer (looks like a big video camera on wheels). If they say they shine the lights on the wall to aim them, keep looking. See
here for all the details.