Currently, when viewing the individual level times on a game's page, milliseconds are shown, but as far as I can tell, they are not shown when viewing individual level times on a user's profile. I'm not sure if there's a specific reason for this, but I think this should be an option where applicable.

Sorry it took so long to respond, this has been fixed; milliseconds are now properly shown for IL runs on user profiles if they are set to be shown for that game.