If it is just a picture or a mirror, I use plastic dowels. First, I use a small masonry drill bit (like 4mm) with the impact drill, then a larger, and possibly another, larger one until I get the hole and depth for the dowel. Then fit the dowel and screw in the screw. Done.
Just make sure the hole is longer than the dowel, and the dowel fits the intended screw. You want to have a real tight fit. Make sure the drill bit is centered and only makes a hole as big as the diameter of the drill bit.
If you drill through bathroom tiles, do not use the impact drill on the tiles. Go through the tiles with the non-impact drill and when you hit the brick or concrete, switch to impact. And for drilling through the tiles, make sure to cool the drill bit often.