Does fiddle work better in higher elo?

I’m only in bronze and a have a hell of a time winning with fiddle. I love the play style and his kit, but god is it hard for me to win with him. To elaborate, I also play Trundle jg and my win rate with him is over 60% despite having a slightly lower KDA than with fiddle. The ability to tank and mow down towers instead of the opposing team make a huge difference.