At a $2/$5 table where everyone is playing tight and nobody is out of line, the right adjustment is to open your stealing range - not tighten up with them.

Why they do it

Tight tables are full of folds waiting to happen. When the whole table is playing scared money poker, aggression is immediately profitable. Most players do the opposite - they tighten up to match the table vibe and leave pots on the table they should be taking.

The adjustment

Open wider from late position. 3-bet the tight regs who limp. Take the blinds more often. The table is handing you chips - don't refuse them.

What it's worth

Adjusting aggression correctly to a tight $2/$5 table adds $100-150 per session in stolen pots alone. This is where good players separate from great ones.