I wonder how much of it is low quality adapters vs poor drivers. Whatever Bluetooth module they used in my £20 Chinesium car stereo connects quicker and works with less niggles than any other device I've tested in the last 20 years.
Similar to jlokier's response, I ended up here after k5 went away. HN fills my geek interests pretty well, and over the last few years I've found that "long form video essays" on YT, audiobooks / podcasts fill my desire for learning about other random topics.
I got around this with Pillow and Python by reducing the image quality to like 20% which in my case didn't have any compromises, but reduced the image size quite substantially. Then I repackaged the images back into cbz and used KCC to make a proper file. As a disclaimer, I have done it only with the Kaiji Ultimate Survivor series to be able to fit the entire manga on my Kindle PW3 with 4GB of storage (I already used up like 1.5GB). Kaiji has less complex drawings, which most certainly plays a role.
My guess would be that it nurtures the imposter sydrome once the "top performer" starts struggeling with something they shouldn't if they truely were a top performer.
For anyone who might want to jailbreak their Kindle in the future, you'll want to enable airplane mode otherwise it will automatically update its firmware (patching the jailbreak) and there's no way to disable that.
It'll keep updating itself as long as it's powered on, even if you haven't used it in months and there's no telling how long it'll take for current firmware versions to be supported, latest jailbroken version is 17 months old.