As far as I understand Guile-emacs is pretty much dead in the water, it hasn't seen any substantial development in quite a while. Your best bet for better emacs performance is the gccemacs branch, that integrates the libgccjit and builds off the existing emacs bytecode infrastructure and compiles it to native code. It is much much further along than guile-emacs and on track to be merged into emacs master at some point.
That would cover one major point of complaint with emacs performance, the other would be getting some form of real threading and parallelism into emacs so that long-running elisp doesn't block the UI thread, but that is a pretty huge task. With that said, I am sure that the community realizes this and is slowly working their way towards this.
That would cover one major point of complaint with emacs performance, the other would be getting some form of real threading and parallelism into emacs so that long-running elisp doesn't block the UI thread, but that is a pretty huge task. With that said, I am sure that the community realizes this and is slowly working their way towards this.