Mighty Mom and Dyno Dad / Knighty Knight - S2-E9
Continuity mistake: In the end scene of Mighty Mom and Dyno Dad (the fight scene), notice the sky is a night sky but later when they loose their powers, Timmy's mom says let's enjoy our nice lunch and it suddenly becomes midday.
Answer: I don't think Vicky necessarily hates Timmy. She is just a malicious and sadistic person.
Rassdyt