What should I do to increase the bandwidth if there are multiple poles within one decade around my target frequency?

[melkord]

I did pz analysis for each block of my circuit.
There are multiple poles/zeros already within one decade around my target frequency.
It gets worse when I do pz analysis on my top level.

What is the strategy in this situation to increase the bandwidth?

 

[Akanimo]

Please show your problem in a drawing. Well, you can cancel existing poles and zeros to obtain the frequency response that you desire as long as it is achievable.