Disable file/directory autocompletion when :open

[FulvioEsposito81]

Hi all,
in some cases I have to remotely access sshfs mounted fs over a VPN. Unfortunately even on 23.10 hitting space + f takes quite a lot of time and murphy's law make it so the file I'm looking for is between the last ones to be loaded in. Also, issuing an :open command keeps me waiting 3 to 7 seconds at each keystroke while loading the file/folder autocomplete list. I'm wondering if there is a way to disable the completion list for the :open command, I usually know the path and would be much faster to type it in without waiting for the autocomplete list to update.
Thank you very much.