And its a well documented fact that being under extreme stress makes someone dumber. I cant imagine the fear one would be with waking up in her situation. Its terrifying. Plus they all use magic to the point where killing you is as easy as killing a fly. Man thats terrifying. And to most with a functioning brain its a well known fact that the old world had very strict social rules. You'd be scrutinised when making a mistake in such high class setting. Its not easy.
They call Penelope a dumb FL but realistically speaking PLUS with all the manhwa I read with "dumb fl" that are practically mary sue or "I know everything and can easily adapt to this kind of novel story" which have TONS of second hand embarrassment moments, Penelope having difficulties transitioning to a new society is scarily realistic to me. Imagining myself in her shoes I'll be probably called the most intolerable, impatient, and insufferable FL.
A lot of readers here have gotten too spoiled by "OP MC" settings where the main character is just aura farming and magically solving problems through convenient plot devices. Any protagonist with actual personality and character flaw is apparently, automatically dumb or boring.
Huge thanks for this much-needed call out LOL those comments were irritating me as well.

Shes a foreigner in a strange new world
Was shoved into a very serious role
Has hundreds of people relying on her
Is in amidst new culture, new customs, new social roles and norms she doesn't know ANYTHING about.
Shes in a medieval/ Victoria/ Edwardian setting as a MODERN Korean girl
All of you fucking retards "omgg is she becoming a dumb FL"
WHAT DO YOU THINK ?? OFCOURSE SHE IS BECOMING "DUMB" SHES DOESN'T KNOW MUCH SHES TRYING TO ADJUST.
Shes probably under extreme stress trying to maintain the territory, trying to not have people die , dealing with banks, royals, monarchs which aren't easy.
Some of you stutter in front of a celebrity and are acting like you'd do better than her.
You all piss me off so much sometimes