I have Logitech software that runs my mouse and G13 controller. It seems to cause lag in the movement. I have uninstalled the Logitech software and used just the regular keyboard and it seems to work fine. Maybe a conflict??? Just letting you know.
I use the new G-Hub software (I think it’s still in beta).
I don’t have issues with my G-Pro keyboard and mouse.
If your using the old software, maybe try the new one, see how that goes.