On the ProDesk 405 G6 SFF I have a problem after booting into the EFI shell, where the response to a keystroke is in the order of 100ms. If you press more than one key in a row, the delay accumulates and the characters appear on the screen one by one.
EFI version is v2.7 on a PC with EFI version v2.6 the problem does not show.
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