Guidance Needed on Using a Photodiode in Photoconductive Mode with a Transimpedance Amplifier (TIA)

Currently, I am using the photodiode in a transimpedance amplifier (TIA) operating in photovoltaic mode. However, I am observing a delayed response from the TIA.

I also tried applying a +9 V reverse-bias voltage to operate the photodiode in photoconductive mode, but the TIA did not respond to the LED signal, which has a frequency of 360 Hz and a 1% duty cycle.

As I am not an expert in photodetection circuits, I would appreciate your guidance and suggestions on how to configure and use the photodiode in photoconductive mode.