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Yeah it feels slow and laggy to me too and I'm not on an old laptop. Running on a M3 Macbook Pro here. I definitely notice the difference between using something like Ghostty (Rust based - super fast) and Toad (Python).

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It doesn't really make sense to compare the performance of Ghostty, a terminal emulator, with Toad, a TUI. Also Ghostty is written in Zig, not Rust.

It's obviously way slower though. Also the point stands, it's written in a low-level, performance-oriented language. The author of Toad could have written it in Rust, Zig, C++, etc, but chose Python instead. He valued ease of development versus performance and the result is we get a laggy terminal.

I know for a fact that Textual can generate an entire frame in less than a 60th of a second. Any lag you see has nothing to do with the choice of language. A TUI just doesn’t require that much number crunching to use a low level language.

I’d be interesting in knowing what platform and terminal you observed the lag, when testing Toad.

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