Can native message fix the fundamental problems in keyhandling? Meaning it can react to keys without the site fully loaded? Work on all sites and dialogs? Have

Can native message fix the fundamental problems in keyhandling? Meaning it can react to keys without the site fully loaded? Work on all sites and dialogs? Have a predictable behaviour instead of timing-problems which can happen now if you type to fast? For example, opening the commandline and typing something to fast can have the effect that the typed text does not end in the commandline but instead is handled outside of it.