This is essentially an overreaction which will tend to drive the current state beyond the desired state and the gap will go negative. The structure's reaction to this is to run in reverse, if this is possible for the particular instance described by the structure. The delay may be such as to cause overreaction in the opposite direction to move the current state below the current state . With a sufficient delay the structure will result in larger and larger oscillations over time. Managing the Structure Advice for dealing with this structure is quite simple.
Patience is a virtue.
If you know you're dealing with a balancing structure and things are not going as expected then study the structure to see if there could be one or more delays that your impatience is simply having difficulty dealing with. This structure proves that there are times when taking additional action is worse than not taking additional action. More is not always better.