Is torque important when drilling hole in ceramic tile?
I'm not a professional, but have drilled a lot of holes in masonry.  For a tile, I don't think that the torque will matter much, just chuck it, set it to high speed and drill.  Drill a test hole in a piece of scrap first, so you will know what to expect.  I think your toughest problem will be trying to get the hole started on your center accurately. Nicking the tile with a punch may help. 

Drilling an 8" x 3/4 inch hole into 10 year old concrete will require a bit more torque.