bug#52157: CC Mode 5.35.1 (Profiler-Report); Objective C support extremely slow

Package: cc-mode

Emacs  : GNU Emacs 29.0.50 (build 358, x86_64-pc-linux-gnu, GTK+ Version 3.24.30, cairo version 1.17.4)
 of 2021-11-28
Package: CC Mode 5.35.1 (Profiler-Report)
Buffer Style: nil
c-emacs-features: (pps-extended-state col-0-paren posix-char-classes gen-string-delim gen-comment-delim syntax-properties 1-bit)

Open src/nsterm.m from Emacs master, and immediately go to line 603.

Once you try to move around after going to line 603, Emacs will lock up
and later become extremely slow.

current state:
==============
(setq
 c-basic-offset 'set-from-style
 c-comment-only-line-offset 'set-from-style
 c-indent-comment-alist 'set-from-style
 c-indent-comments-syntactically-p 'set-from-style
 c-block-comment-prefix 'set-from-style
 c-comment-prefix-regexp 'set-from-style
 c-doc-comment-style 'set-from-style
 c-cleanup-list 'set-from-style
 c-hanging-braces-alist 'set-from-style
 c-hanging-colons-alist 'set-from-style
 c-hanging-semi&comma-criteria 'set-from-style
 c-backslash-column 'set-from-style
 c-backslash-max-column 'set-from-style
 c-special-indent-hook nil
 c-label-minimum-indentation 'set-from-style
 c-offsets-alist nil
 c-buffer-is-cc-mode nil
 c-tab-always-indent t
 c-syntactic-indentation t
 c-syntactic-indentation-in-macros t
 c-ignore-auto-fill '(string cpp code)
 c-auto-align-backslashes t
 c-backspace-function 'backward-delete-char-untabify
 c-delete-function 'delete-char
 c-electric-pound-behavior nil
 c-default-style '((java-mode . "java") (awk-mode . "awk") (other . "gnu"))
 c-enable-xemacs-performance-kludge-p nil
 c-old-style-variable-behavior nil
 defun-prompt-regexp nil
 tab-width 8
 comment-column 32
 parse-sexp-ignore-comments nil
 parse-sexp-lookup-properties nil
 auto-fill-function nil
 comment-multi-line nil
 comment-start-skip nil
 fill-prefix nil
 fill-column 70
 paragraph-start "\f\\|[ 	]*$"
 adaptive-fill-mode t
 adaptive-fill-regexp "[ 	]*\\([-–!|#%;>*·•‣⁃◦]+[ 	]*\\)*"
 )