Profinet-KNX Gateway - Write APCI problem

Hello everyone,

I'm using a Profinet-KNX Gateway, ADFweb HD67818 which I discovered later that does not have official KNX support.

On the KNX side I have some simple functions, lights and pushbuttons, on the Profinet side I have a S7-1200 PLC. The reading function throug the gateway is very fast (I'm reading the status of some DI/DO), but the writing function is very slow, sometimes it tooks up to 15s to write a DO actuator.  The DOs are configured as switch with flags C, W, T, and U.

It dipends on the gateway? Anything I can do to improve it?

Thanks,