### Godot version

8449592d92eaeef990f5502b419d491ee3eeb7a6

### System information

Windows 11

### Issue description

Zooming in the script editor on an empty script freezes the entire editor for a few seconds, but if the file is large then it freezes for 4-5 seconds (which is unacceptable). Looks like a recent regression.

### Steps to reproduce

Just zoom in/out on the large script file.

### Minimal reproduction project

N/A
ShapedTextDataFallback *sd = shaped_owner.get_or_null(p_shaped);
	ERR_FAIL_COND_V(!sd, false);
	MutexLock lock(sd->mutex);
	if (!sd->valid) {
		_shaped_text_shape(p_shaped);
	}
	if (sd->line_breaks_valid) {
		return true; 
	}
	int sd_size = sd->glyphs.size();
	Glyph *sd_glyphs = sd->glyphs.ptrw();
	int c_punct_size = sd->custom_punct.length();
	const char32_t *c_punct = sd->custom_punct.ptr();
	for (int i = 0; i < sd_size; i++) {
		if (sd_glyphs[i].count > 0) {
			char32_t c = sd->text[sd_glyphs[i].start - sd->start];
			if (c_punct_size == 0) {
				if (is_punct(c) && c != 0x005F && c != ' ') {
					sd_glyphs[i].flags |= GRAPHEME_IS_PUNCTUATION;