First of all, it's the author's choice what kind of character they want to portray. Respect their art even if you find it's not your taste.
Second of all, you can't expect all the female lead gonna be badass, (well I can't tolerate FL that would always cry, that's why I won't read any manga/webtoon/manhwa with FL like that and I will not purposely leave hate comment on it because we have to respect how the author want to write their stuff)
Last but not least, just move on if you can't accept her (I don't really find her weak, I luv her) (灬º‿º灬)♡
My fujoshi antenna is tingling even thou I know it's not yaoi but when Pavel was making that kind of face (a hurt face -for my point of view) I can't help it and I know I'm not the only one
ε=ε=(ノ≧∇≦)ノ