Modbus Digital Inpunt and Digital Output

I bought the following test equipment.

It is set up and working

My goal would be to connect your inputs and outputs as follows.
The digital inputs on switches.
And the digital outputs on ordinary lamps.

When I turn on the lamps directly through the Home Assistant panel, they receive the command instantly.

When I turn on the lamps by the switches that activate the digital inputs, which are the triggers for changing the state of the digital outputs, the activation of the lamps takes time.

For the researches that I did the Home Assistant the minimum time to search for modbus updates is 1 s so the delay

Does anyone have any idea how to get around this problem