Well depending on where it is located at, it's possible that it becomes a bit harder to read at lower angles, but that's about it. 1.5 meters is far too close to be playing at in my opinion. It's doable I'm sure, make sure that the options are set to read it at a sensitivity of 1.
I thought I was close being 3-4ft away. Then again I play on a 42" and it probably is, lol.