Things have certainly changed ever since Shinichi revealed that he was Conan and was using Sonoko with his stun gun to have her be his “person” when doing those deduction shows

Finally learning this, somewhat deflated Sonoko’s ego of believing she was this great detective when she was this “sleep person” version of herself. But, she now wants to prove that she took can be just as good of a detective as Shinichi is*

Sonoko would drag Ran to the archive part of the library to see if there are any old unsolved cases

Sonoko: I'll prove that I'm a good detective. Sure I was basically controlled, but I don't care. I'll prove it! She says, looking through old newspaper articles