The thing about Mu is guessing right, she has 3 typical options, Ground to Ground (5c), Air to Air (j.c), and Ground to Air (2c).
You can beat 5c by avoiding it.
You can beat j.c by avoiding it, which is pretty hard, but possible.
You can beat 2c by baiting it, like all anti-airs.
Dodge lasers and be aggressive, but block her shit.
DPs should be baited and punished like all others.