"Performance" in a text editor means latency, and it's not going to matter there when the text editor also has to edit the text, update the display, etc. "Perf

"Performance" in a text editor means latency, and it's not going to matter there when the text editor also has to edit the text, update the display, etc. "Performance" in a server also means throughput. There's a reason why protobufs exist and it is all about performance (and type safety which is related) and there's no way JSON serialize/deserialize overhead, in both directions every time, is going to be a good choice here.