This macro will allow you to select a wall from the enemy with 0 ping if you have a high ping and you can't select a wall, then this is not a problem. my friend and I tried and I selected 8 walls out of 10! (not 100% of course, but it will help)
Download the program (Download) and go to the macro editor
press the button «Open file»
and select the downloaded file
assign a macro to a key and run the program