Tuner is broken. Ever since I updated I'm having the same crazy delay of note recognition on the tuner. What I've noticed is that if I leave the tuner open for 10-20 seconds it goes back to normal and is usable (thank god). Still very annoying though.
EDIT: Just confirmed my tap tempo is borked too. I'll tap it, it'll flash (too slow) for a couple seconds, then start flashing (too fast) from then onwards.