I didn't realise it was strange until my sister complained about it being incomprehensible gibberish, but I listen to podcasts at at least double speed.
One of the characters on the Hideous Laughter podcast Interlude episodes had long pauses between words so I kept speeding it up until they stopped bothering me. Then everything else sounded weird at normal speed and I'd get bored during the pauses between people speaking, so now they're all on 2-2.5x speed.