Live is looser because few people go all the way to a casino just to fold hands - it simply isn't fun.
That said, there are different kinds of bad players, so there's no universal solution to the problem - what you need to do is identify who is playing how, and adjust accordingly. There are some players who will see every flop, but then allow themselves to be chased out every time they miss. C-bet these types liberally, or even better, raise preflop in an attempt to isolate them and get more money in. Others will call you down with any pair and chase every draw - in those cases, you have to wait until you hit and then punish them. In all cases, don't be afraid to raise / reraise your good hands preflop, and toss the hands that will get you in trouble rather than fixating on the implied odds
of having so many people involved.