It's a matter of practice and progression. I listen to podcasts and audiobooks in English at 3x speed, but it took me maybe 2-3 years to get to this level.

I understand all casual and technical content just fine. The only thing tripping me is fiction where I struggle with character names that I don't know how to spell (my visual memory needs it!). That's an English-only problem though. I don't have any of those issues with content in my native language (Bulgarian).