Why does my Basque sound so stiff compared to subtitles?

I'm an immersion learner trying to move from watching EITB with subtitles to watching without them. I notice that even when I understand the vocabulary, the way natives link their words makes me feel like I’m reading robotic text. I’m looking for advice on how to improve my flow and rhythm; should I be using Chickytutor.com to practice shadowing or is there a better way to internalize the natural cadence of the Basque language?