Above 70-75k characters, text input fields on any site have a ton of input lag -- like, I have to wait 10s after I type a sentence for the sentence to finish slowly updating letter by letter. I've tested across multiple sites, and in Private mode (to confirm it's not caused by extensions, none of which are allowed in Private mode). I also tried setting `accessibility.force_disabled=1` as suggested [https://support.mozilla.org/en-US/questions/1395816 here] and [https://support.mozilla.org/en-US/questions/1396074 here], but that didn't help (and yes, I restarted). Disabling hardware acceleration didn't help either.