Right now you should shoot for slow. Seriously, speeding up too soon is the cause of a lot of troubles for beginning pipers. I know the temptation - it just doesn't sound right to play at 1/2 normal speed - but resist it! 80 bpm in 4/4 is plenty fast at the beginning - concentrate on learning the notes, then the grace notes from each of the main notes, and then the more ornamented embellishments. Get each note into muscle memory before you try to leap out ahead and play like Duncan McGillivray or Kenny Forsyth, or whoever it was that you heard that made you want to learn the pipes.

Something that helped me was to start by learning slow tunes, so that they were at least semi-recognizable at the speed I had to play back then. It was easier to practice when I could hear a bit of what the music would sound like as I squeaked and honked my way through the tune.