So, if you like a girl and she is bad at doing one thing, will you lose interest? For example, the girl in your class you like really fumbled a presentation when her turn came to present in front of everyone.
She was extremely and visibly nervous, her hands and face was shaking and words were breaking because she couldn’t breathe.. she still rushed through the nervousness and spoke extremely fast and finished the presentation and rushed to her seat. It was an extremely embarrassing presentation though because no-one did it as bad as her. It may make her the laughing stock of the class and it also feels a bit incompetent because why are you so nervous and shaking like a leaf just for a presentation.. when others did it normally.
Other than this, she is good at studies.. you both may have mutual attraction towards each other.
However, this one thing shows incompetence.. does it ruin your crush on her? Do you start seeing her in a different light?