I am an Emacs user, but Emacs has never been a truly good choice on the Amiga. Maybe it is time to learn some Vim, which kind of started on the Amiga.
Is Vim good on AROS / Amiga 68k?
Vim after all started on AmigaOS, so it is an original AmigaOS software, ported to Linux and all those other platforms. How good the port is, I don't know, but I guess, it will work quite ok. Vim is most likely available on every platform you can find, so it should be quite portable.
Try it yourself, but be warned. The beginning might be hard, but after some years you will like it ;-). But after this time, you will be faster as most others, editing texts.