Konsole itself could probably be considered bloated. You can easily write a super functional and performant terminal emulator in 50-100K by only using the external dependencies that are absolutely required - i.e. on Linux, the POSIX/Linux syscall interface and Xlib. You shouldn't even need libc, but AFAIK on Linux it's extremely hard to not use it, for stupid reasons.

> To really compare them properly, you'd also need to make the typescript compiled into equivalent JS VM assembly.

That's like saying, to compare Usain Bolt and myself in terms of sprinting performance, you should consider the fact that I'm chubby for a fair comparison.