Please ensure that the headlight is clear and not frosted. If frosted, there are kits you can buy and use to make it clearer.
Headlight cover does reduce the output a little, so you may want to remove this if you have one.
Replacing bulb to Philips xtreme or Osram Night breaker makes it a little better.
You can go to HID if bulb replacement is not enough but installation is difficult (nearly imposible) to make it legal. Use 35W only and 4200K (no blue spectrum).