playing at maniac table

[setzf]

So I sat down at my usual 3/6 holdem table at my local cardroom yesterday and within ten minutes a known maniac sat down at the table across from me. I've played with her many times before and know that she is a bonafide maniac raising 90% or more of her hands preflop, automatically betting and capping the flop, and never folding before the river. So I stay out of her way until I can get the seat directly to her left since everyone else is loose-passive. unfortunately within 20 minutes of moving two or three other maniacs sit down at the table, one directly to my left. next thing i know for about two hours 90% or more of the hands are capped multiway preflop and more than half the time on the flop. so after feeling like getting the worst of it for two hours i move over to a more passive table and finish off a good session.
SO MY QUESTION IS, what adjustments should be made for a game like this: tighten up considerably? loosen up considerably? should i just wait for powerhouse preflop hands? should i be in raise or fold mode? or was moving to a passive table the best option of all?
thanks