Adjusting to the table is an art.
(Warning: yes, I have written this post before, hence the graphs).
There is a "theoretical optimum strategy" (TOS) to limit, all things being equal. You should be VPIP'ing X% and CR'ing Y% etc etc.... You should try to play as close to this optimum point as possible. If you were to graph Tightness vs Agressivesness, The TOS could be shown as a point (or small area) on this graph:
But all things are not equal, you need to adjust your game. The TOS doesn't change, but the table has. The majority of the table will rarely be playing a TOS game. In this exaqmple, the majority of the table is a loose, passive to aggressive (red area):
The Most profitable strategy for this table would be the Yellow area. You just need to play a game that is closer to the TOS than the rest of the table. For tighter tables, and given the limits you are describing, the red area would just slide up and to the right a little bit, you still just need to play in between the TOS and the rest of the table.
So if the table average is like 26% Vpip, and agrros like 1.2, then a profitable strategy (over the long run) might be a VPIP of 20% and aggros of 2.0+. You can play looser than normal, but not too loose. This is Miller's entire theory behind SSH. As long as you are closer to the TOS than the rest of the table, you should show a profit (over the long run of course).
mvp