I can't stress this point enough, and I'm sure I've stated it before: Your car's standard halogen headlight will not properly reflect the light from an HID bulb. This is because of the difference in shape of a Halogen bulb filament VS HID bulb arc. This is why your light output is funky. When I had my van, I had to position the lamps much lower than I would have with halogens.
The other issue with aftermarket HID is that that there's very little difference between low and high beams (headlights), because the dipped beam is created by a solenoid mounted shroud which moves to partially obscure the light. In halogens there are two separate filaments taking care of this.
@hatharasinghe if your headlights are focusing very high, its very likely your low beams are already creating glare on oncoming traffic. I had this issue with my van, when I had finally found the correct position, the high beam was quite useless because it would not shine as high as halogen bulbs would.
It's because of these issues I decided not to go HID with my Vios but instead invest in good halogen bulbs instead.