Change pin drive strength in XEM7360


I have connected to connect XEM7360 to a PCB using expansion connectors and I have configured the I/o pins to follow LVCMOS18 standard (and adjusted the vadj setting to 180).

I am getting 1.8v at the output pin as expected but when try to send a pulse (signal high for one or two cycles), we can see that the signal is very slow to reach 1.8v.

Could you please let us know if this issue can be solved by changing the FPGA settings ( drive strength)?

What is the pin driving?