Intelligently opening large files in emacs

[Dushyant Juneja <juneja.dushyant@gmail.com>]

Hi,

I'm relatively new to emacs, but am pretty fascinated by its features. One
pain point is that it is rather slow in opening large data files bound to
specific modes. I generally observe it for circuit mode files (files
utilizing verilog-mode, spice-mode and spectre-mode). Is there a
possibility to help this?

I find that M-x ffap-literally is rather fast, so can the following be done
somehow:

If file is larger than default warning limit, open it literally.
Else open it with usual mode bindings.

Also, please share as to how may I modify the default size limit.

Regards,
Dushyant Juneja