Oh that’s a great test case. I’ve been annoyed by the speed issue too. For a while I had json and Md files bound to Zed because it was faster with highlighting than anything else.

But even that takes seconds to start on my M1 Max from cold. So then I just wrote (avec Claude) a viewer app and it turns out computers are so fast you can not only open multi GB JSON files instantly you can even pretty print them so fast the user won’t lose attention.

But I just generated those. Moby Dick is a great real-world test case.