Wow, you responding to my 6-month old comment just gave me a massive confidence boost. While I do vaguely remember writing that comment… I’m not sure I consider it to be true any more. I.e. I don’t necessarily feel like Bunpro recordings are “way too fast” or super difficult to understand any more. They’re definitely not slow, and they definitely do make me work, but I’ve gotten used to the challenge I guess. I’ve also listened to countless JapanesePod101 episodes in the past 6 months (because my failure of the N4 exam last year made me realize how much my listening skills sucked), and I play every single Bunpro review sentence at least once (or as many times as required for me to feel like I can read along with it at real speed), and usually I force myself to read it out loud both before and after playing the recording. This makes Bunpro reviews take a long time… but I think it generates far more bang for the buck. I.e. Bunpro is ostensibly just for learning/practicing grammar, but when I use this painful approach I just described… I’m actually simultaneously practicing reading/kanji, vocab, speaking, and listening. I absolutely love it when a kanji I just learned in WaniKani shows up in one of my Bunpro reviews (or vice versa when I get a “new” kanji in WaniKani but realize I already know it from Bunpro). I often feel like I’m not pushing myself hard enough at real native reading (I’ve been struggling through the same manga for months now, like a page a day), but Bunpro sentences make up for that I think.
My point being less about bragging about my improvements, and more about the fact that maybe the Bunpro speed isn’t as bad as I once thought. Lean into it, and if you get to where you can understand it, then presumably that will make the JLPT speed feel much easier. Which is a good thing, because my stress level in the JLPT test room is 10x higher than what it is when sitting on my couch doing reviews, so it’s a good thing if the former seems “easier” (and making the latter “harder” is one way to ensure that).