That sounds a lot like what ondemand cpu governor tends to cause sometimes. Try switching to smartass2.
yes to me too,kind of stalls,not very responsive sometimes,clicking home softbutton after making changes in settings seems to take ages (prob 4/5 seconds) but i really dont mind its a lovely rom
Battery performance is the same as usual for me. Shouldn't be much of a difference (if any) to CM9/10.
I agree about battery being pretty bad,mine is in airplane mode,woke this morning to 59% of battery remaning
phone would not wake on any key except power